The essential Santorini sea experience — catamaran or sailboat tours of the caldera circumnavigation, including the active volcanic island of Nea Kameni (you can hike to the sulfurous crater), the hot springs of Palea Kameni (warm sulfurous water turns the sea yellow around you), the dramatically red-cliffed Red Beach, and the White Beach, all culminating in a sunset sail back to Fira. Semi-private tours from ~€90; fully private yacht from ~€400.
Why It’s Worth Your Time
Santorini’s volcanic soil produces Assyrtiko — one of the world’s most distinctive white wines. Estate Argyros, Domaine Sigalas, and Venetsanos offer tastings with caldera views. The vines are trained in basket shapes to withstand the wind.
What Stands Out
- Nea Kameni: hike up the active volcano's sulfurous crater (included in most tours)
- Palea Kameni hot springs: swim in warm yellow sulfurous water in the caldera — extraordinary
- Red Beach: only accessible from the sea (or a rough coastal path) — dramatic red volcanic cliffs
- Sunset sail back to Fira: watching Oia from the water at golden hour is a defining Santorini moment
- Semi-private tours: €80–120/person · Private catamaran: €400–800/day