Santorini Experience
The ninth Santorini Experience is scheduled for 16 to 18 October 2026 — the caldera swim from the volcanic islet to the Old Port of Fira on the Friday, three Oia trail routes on the Saturday — co-organised by the Municipality of Thira with ActiveMedia Group.
The ninth Santorini Experience is co-organised by the Municipality of Thira with ActiveMedia Group, held on Santorini since its founding in 2015. The 2026 edition is scheduled for 16 to 18 October.
The open-water swim on Friday covers 1.5 miles — 2.4 kilometres — from the volcanic islet to the Old Port of Fira, crossing water at four hundred metres’ depth at the centre of the caldera. The course was designed by Nikos Gemelos, technical director with Olympic and world distinctions in swimming. Saturday’s trail running offers three routes of five, ten and fifteen kilometres, starting and finishing at Oia along the rim path through Firostefani and Imerovigli.
The 2024 edition drew athletes from thirty-five countries to the island. The date sits deliberately at the closing edge of the island’s calendar, after the heat and before the winter ferries.