About this tour
When Lily from our BugBitten team booked this private catamaran, we were after a solid half-day on the water without the usual Santorini crowds. The cruise sails from Vlychada port around Thirasia Island—a quieter neighbour formed by the same volcanic eruption that shaped Santorini 3,500 years ago. You're looking at five hours of cruising past volcanic-striped beaches, snorkelling in clear water, and a proper BBQ lunch on deck with local wine flowing freely. It's a relaxed, mid-sized catamaran experience that punches above the usual tourist-trap tours.
Highlights
- Coloured volcanic beaches visible from the water—reds and blacks from eruption layers
- Snorkelling gear included; actually decent spots without reef damage
- Open bar throughout—local wines and beers, not just watered house plonk
- Thirasia Island BBQ lunch cooked on board while you watch the caldera
- Small-group catamaran feel, not a packed party boat
- WiFi and air-con on deck if the heat gets too much
- Volcanic caldera views without fighting masses on Oia cliffs
- Maps provided so you can actually understand what you're looking at
What to expect
The day kicks off at Vlychada port—a working harbour, not Instagram-ready, which sets a refreshingly unpretentious tone. The catamaran motors out toward Thirasia, and you'll notice the water colour shift almost immediately; it's genuinely clear and that volcanic backdrop (Nea Kameni smouldering away) stays with you the whole time. Snorkelling happens first, in a sheltered bay where the water's calm enough that even nervous swimmers get in.
Lunch arrives mid-afternoon—BBQ grilled on the boat itself, with fresh seafood and local plates. The open bar means you're sipping decent Santorini whites while watching the caldera. Pacing is unhurried; there's no rushed "hit five spots in four hours" vibe. Expect a gentle sail back to port as the afternoon light softens. The whole thing feels private without feeling exclusive or pretentious.
What travellers say
- Open bar with actual local wines, not generic resort plonk
- Snorkelling included in calm, clear volcanic water
- Relaxed pacing—lunch and loafing, not rushed site-hopping
- Small catamaran avoids the packed-tour-boat exhaustion
- Caldera views from the water beat crowded clifftop viewpoints
- BBQ cooked aboard adds theatre and genuine flavour
- Full-day sun exposure—sunscreen non-negotiable, not optional
- Catamaran motion unpredictable in rougher seas or winter
- Limited accessibility for mobility concerns or balance issues
- Early port departure may clash with slow-starter schedules
Themes summarised by our team from public information about this tour. Verify specifics on the operator's page before booking.
Good to know
This works for families (infants can sit on laps, prams stay ashore), mixed fitness levels, and anyone wanting actual swimming time without the madness of Santorini's main beaches. The open bar is genuinely inclusive—non-alcoholic options matter if you're driving after. Snorkelling gear, towels, and a cooked lunch take the stress out of planning. Small group size means guides know who you are.
Five hours on a boat in full sun is real—bring sunscreen and a hat, not optional. The open bar glosses over the fact you're still on a moving vessel; don't expect calm seas every day, especially in shoulder seasons. Early departure from port might feel early if you're not a morning person. Accessibility on a catamaran is limited (steps, moving decks).
Include snorkelling kit, towels, WiFi, BBQ, open bar, and printed maps. Swimwear, sunscreen, a light layer, and cash for tips. Groups stay small—no corporate party-boat chaos. Best in late spring through early autumn; winter swells can be choppy.
Tour sold and operated by Viator via Viator. Descriptions on this page are original BugBitten summaries written by our team — not copied from the operator. Prices and availability are confirmed at checkout.