A Morning on the Water Out of Sai Kung
When Priya from our BugBitten team first rounded the eastern headland of Clear Water Bay on a bareboat charter in late November, she expected — half-consciously — to still feel the city. Kowloon's towers were right there on the northern horizon, a smudge of glass and concrete hovering above the haze. But the wind was coming in hard from the northeast at about fifteen knots, the bow was lifting cleanly over a short chop, and somewhere between the second and third tack she stopped thinking about MTR exits and rooftop bars entirely. The outer islands had done their work.
That particular trip covered Sai Kung East Country Park, a night swinging on the hook off a volcanic beach near High Island, and a long broad reach back on the second afternoon that had everyone sprawled along the leeward rail eating mandarin oranges out of a plastic bag. It cost less than two nights at a mid-range hotel in Wan Chai. And it required no ferry queue, no Octopus card, no negotiation with a taxi driver about luggage. Just a charter briefing, a tidal almanac, and enough crew to handle the sheets.
This is what sailing Hong Kong's outer islands actually looks like — not a postcard, not a bucket-list abstraction, but a specific, genuinely achievable type of trip that most visitors to Hong Kong never know exists.
What Makes This Part of the World Worth Your Time
Hong Kong's outer islands occupy the northern edge of the South China Sea, scattered across a stretch of water that extends roughly forty nautical miles from the western harbour approaches to the exposed volcanic headlands of Po Toi in the south. The geography is more varied than most people expect. There are basalt sea cliffs with hexagonal column formations so well-preserved they are cited alongside similar formations on the UNESCO World Heritage Centre pages discussing geological significance in coastal Asia. There are shallow turquoise bays that look, in the right afternoon light, closer to the Andaman than to a Special Administrative Region.
What makes the sailing itself interesting is the consistency of the northeast monsoon between October and April. You get force three to four conditions on most days — reliable enough to plan around, variable enough to stay interesting. Heading out from Sai Kung means close-hauled or close-reaching work as you push east and south into the country park waters; the return leg swings onto a broad reach and, if you time the afternoon pressure right, you can run back in under spinnaker with the sun dropping behind Lion Rock.
The islands also carry genuine ecological weight. The Sai Kung East and West Country Parks together protect one of the most significant stretches of coastal wilderness remaining in southern China, with marine parks buffering the anchorage areas around the High Island Reservoir sea wall. Coral coverage in the cleaner bays is better than most people expect this far north — water temperature in October-November is warm enough for a mask-and-snorkel session off the hook. By February it's cold enough that you'll want a full wetsuit or more.
What distinguishes all of this from the resort-island sailing you might do in, say, the Philippines or further south is the contrast. The Kowloon skyline does not disappear. You are always in some technical sense close to nine million people and one of the world's most dense urban environments. The tension between that background fact and the reality of sitting in a quiet anchorage eating fish someone just caught off the stern is exactly the point.
How the Wider Area Feels
Sai Kung town, the natural base for most charter trips, functions as two places running on top of each other. On weekday mornings it is a working fishing and market town — the wet market along the waterfront moves salt fish, live seafood, bundles of morning glory, and elderly men carrying plastic bags with an efficiency that feels entirely indifferent to the hiking-gear crowd arriving on minibuses from Choi Hung MTR. By weekend lunchtime the waterfront promenade is dense with day-trippers eating fresh seafood at the floating restaurant jetties, choosing live grouper from the tanks stacked outside each kitchen.
For sailors this layering is actually useful. The provisioning is excellent. The wet market stocks produce at genuinely local prices. The Wellcome and Park n Shop supermarkets within a ten-minute walk of the marina cover anything the market doesn't. There are chandlery supplies, fuel pontoons, and a handful of cafes that open early enough for a 0630 departure without requiring anyone to make their own coffee in the dark.
The marina atmosphere at Sai Kung is relaxed and slightly tatty in the way working marinas often are — fibreglass cradles, peeling paint on the office block, a cat that appears to live under the fuel dock. Aberdeen Marina, the other main charter hub on the south side of Hong Kong Island, runs slightly more formal but also slightly more expensive. Both operate in English without difficulty.
Out on the water, once you are past the sea wall and into the open Sai Kung East anchorage areas, the feeling shifts. The shores here are steep volcanic rock dropping into deep water, with small beaches tucked into gullies. The villages that once occupied several of the inner bays were resettled decades ago, and the structures that remain — a few old stone walls, a collapsed fish drying platform — are gradually being swallowed back into the hillside vegetation. In certain anchorages you will not see another vessel. In others, particularly on weekends, you will be surrounded by local day-charter junks with families playing mahjong on the foredeck.
What to Actually Do Here
Day Sailing From Sai Kung
The most accessible introduction is a single-day bareboat hire out of Sai Kung Marina — four to six hours under sail covering the inner country park waters, with an anchor stop for swimming. The channel through the sea wall entrance into the High Island Reservoir area is narrows work requiring attention to the chart, but it is not technically difficult. The reward is access to anchorage spots that feel genuinely remote despite being thirty minutes from a town with excellent congee.
For those without a current offshore certification, skippered junks are widely available and in some respects more enjoyable for a first visit — you can focus on the water rather than the navigation, and local skippers carry generational knowledge about where the fish are, which bays shelter from which wind direction, and which beaches stay clean.
Overnight and Multi-Day Passages
Po Toi Island, the southernmost point of Hong Kong, sits about twelve nautical miles south-southeast of Aberdeen and offers a different grade of experience. The passage south runs through progressively more exposed water, and the anchorage off Po Toi is genuinely open to the south — it requires settled conditions and a certain comfort with surge. The island itself has a resident population of only a handful of people, a single small restaurant open on weekends, and rock formations dramatic enough that they feature among the geological landmarks referenced in Hong Kong UNESCO Geopark documentation and have been considered in the context of the UNESCO World Heritage List for coastal geological heritage.
Cheung Chau, sitting eighteen kilometres southwest of Hong Kong Island, rewards a weekend stop entirely. It is ferry-accessible — which means it has visitors — but the fishing village character remains functional rather than performed. The typhoon shelter is still working: wooden fishing craft, nets drying on the seawalls, the smell of salt and diesel. The town's seafood restaurants are straightforward and good. Anchoring in the approaches requires clearance of ferry traffic, which demands attention, but the inner berths are calm once you're settled.
Swimming and Snorkelling
Several of the Sai Kung East bays have coral in the three-to-five metre depth range worth visiting with basic snorkel gear. The water is clearest in October and November before the winter runoff muddies things in the lower-salinity periods. Bring your own mask — charter operators occasionally provide gear but quality varies.
When to Go (and When Not to)
The sailing window is October through April, driven entirely by the monsoon calendar. November, December, and January give the most consistent northeast monsoon conditions — typically force three to four, occasionally pushing five on exposed passages, with clear days and low humidity. February is still reliable but can carry stronger, gustier winds and sea conditions that turn steep in the straits between islands. March and April see the wind ease and the horizon go hazy with pre-summer humidity; the sailing is gentler and the light is soft, but the wind can be frustratingly fluky.
May onwards into summer means the southwest monsoon and typhoon season. Between May and September, tropical cyclone warnings can close the harbour and marinas for days at a time. Reputable charter operators will be hauled out or operating on ferry-shelter runs only; anyone offering an open-water charter in July in this part of the world is either very experienced or not worth trusting. The comparison with the southwest monsoon sailing conditions further north along the Chinese coast — including China (Hainan Island) where the weather windows run differently — is worth noting if you are planning a broader South China Sea itinerary.
How to Get There and Nearby Stops
Getting to Sai Kung: From Kowloon, the 92 or 96R bus from Diamond Hill MTR station covers the route in around forty minutes depending on traffic. Minibus 1A runs from Choi Hung MTR and is faster but fills quickly on weekends. Taxis from Kowloon to Sai Kung Marina run around HK$120-150. From Hong Kong Island, the Cross Harbour Tunnel adds time; most sailors coming from the island side base at Aberdeen instead.
Aberdeen Marina: MTR to Wong Chuk Hang on the South Island Line, then a short taxi or bus to the marina complex. Aberdeen Boat Club and Aberdeen Marina Club both handle charter traffic, with the latter running more structured services.
Ferry connections: If you are sailing multi-day, note that Cheung Chau has regular high-speed ferry connections to Central Pier in under forty minutes. Po Toi has a weekend-only kaido ferry from Aberdeen. These connections are useful for crew rotations on longer trips.
Nearby sailing destinations in the broader region: The more places in South China Sea section on BugBitten covers other access points in the region. For longer blue-water comparisons, the passage south to Philippines (Palawan) is a different scale of trip entirely — roughly 700 nautical miles — but sailors who've done the Hong Kong outer islands frequently cite it as the natural next ambition.
What to bring:
- VHF radio licence (worth carrying even on skippered charters)
- Paper charts of Sai Kung East and Po Toi approaches — do not rely solely on chartplotter
- Wetsuit or thermal layer November through February
- Snorkel gear if you plan any anchor swims
- Sun protection rated for reflected water glare
- Cash for the wet market and small island restaurants; card terminals on fuel pontoons are inconsistent
The Not-So-Good Bits
Honest account: the water quality varies. In the inner Sai Kung bays closest to the marina, and near the ferry channels around Cheung Chau, visibility can be poor and floating refuse after rain is a real issue. The cleaner bays require pushing further out into the country park, which adds passage time on a day charter and means you are navigating narrower channels.
The chartering market in Hong Kong is also less regulated than Australia or New Zealand. Some operators are excellent; others cut corners on maintenance. Inspect the bilge before you leave the dock. Check the flares are dated. Ask about insurance specifics in writing.
Weekend congestion in the most popular anchorage bays can be significant from November onwards. If you want solitude on a Saturday, you need either an early start — clearing the marina by 0700 — or itinerary flexibility to sail past the obvious stops.
The cost, while reasonable by Hong Kong standards, is not cheap by regional sailing standards. A bareboat for a weekend runs HK$3,000-5,000 per day depending on vessel size and operator. Skippered day charters start around HK$2,500 for a small group.
Finally, checking into mainland China waters from a private vessel involves significant paperwork, advance notice requirements, and a level of bureaucratic friction that most day itineraries simply avoid. If your plan involves crossing into Chinese territorial waters north of the islands, allow considerably more lead time and take local legal advice.
Final Word From the BugBitten Team
Hong Kong's outer islands are one of those places that rewards people willing to do slightly more than the standard itinerary. The standard itinerary is Peak tram, dim sum, Mong Kok, day trip to Lantau. All of that is fine. But the version of Hong Kong where you are anchored in a volcanic bay watching a frigate bird work a thermal over the headland while the city skyline sits twenty kilometres north on the horizon — that version is also available, and it takes a single charter booking to access it.
Priya's advice from that November trip, offered without any particular editorial pressure: go in late November or December, book a skippered vessel for the first time out so you learn the channels from someone who knows them, bring better foul-weather gear than you think you need, and do not skip the wet market in Sai Kung on the morning of departure. The fish you buy there will taste significantly better than anything the charter company thought to stock.
The BugBitten team rates this as one of the more genuinely underused sailing grounds in Asia — not because it's obscure, but because most people who fly into Hong Kong for a week simply don't know it's there. Now you do.
