Santorini Catamaran Cruise: Caldera Snorkeling, Volcano Hot Springs & Open Bar

A five-hour catamaran circuit that hits Santorini’s Red, White and Black beaches, swims at volcanic hot springs, and serves a fresh onboard meal with an open bar. Ideal for travelers who want snorkeling, geology, and a relaxed Aegean sail.

Vlychada, South Aegean•

5 hours

•By Adventure Collective•October 2025

The Experience

You step from the quay at Vlychada and the catamaran’s lines hum as the hull parts the bright Aegean. Within minutes the island’s cliffs lift behind you—stratified rock, black lava and pale ash stacked from millennia of eruptions—and the boat slips toward the Red Beach where iron-rich cliffs flare crimson against clear water. The cruise threads past the Venetian lighthouse at Akrotiri, a 19th-century marker watching over volcanic cliffs, and then into quieter coves: White Beach’s chalky faces and the dark folds of Black Mountain where snorkeling reveals sudden schools of forage fish. Midway the boat anchors near Nea Kameni, the volcanic islets inside the caldera; warm, sulfur-rich flows form the island’s hot springs and give the water a mineral edge visitors often seek for a brief therapeutic dip. Onboard, the meal is straightforward Mediterranean—seafood, grilled chicken and salads—served with local wine while the crew offers context about Santorini’s dramatic geology and the Minoan-era eruption that reshaped the coastline. Practical notes are plain: swimsuits and reef-safe sunscreen, a towel and basic snorkel skills make this a comfortable five-hour outing suitable for most travelers. Expect short swimming stops (20–30 minutes each), moderate boat motion, and a small-group atmosphere capped with the option to time the return for Santorini’s famous sunset. Timing matters—morning trips offer calmer seas and clearer water for snorkeling; late-afternoon departures give that iconic, golden descent of light over the caldera.

Santorini Catamaran Cruise: Caldera Snorkeling, Volcano Hot Springs & Open Bar

The Experience

Before You Go

Bring reef-safe sunscreen

Wear water shoes

Timing for visibility

Guard your belongings

Local Knowledge

Hidden Gems

Wildlife

Conservation Note

What to Bring

Swimsuit and quick-dry towelEssential

Reef-safe sunscreenEssential

Water shoes

Light windbreaker

Common Questions

Is snorkeling equipment provided?

Can non-swimmers participate?

Are hot springs safe to swim in?

Is hotel pickup included?

Book This Experience

Topics

Ready to Explore Vlychada?