Blue Caves (Errikousa) | Paxos’ Soft-Coral Caverns
Site Overview
The Blue Caves off the tiny islet of Errikousa, near Paxos, are a quieter, softer counterpart to the famous Zakynthos caverns. Here the limestone openings glow with the same electric-blue light, but the walls are dressed in soft corals and nudibranchs that give the site a delicate, colourful character all its own. Diving the caves is a gentle, shallow experience suited to Open Water divers, with octopus and cuttlefish in the recesses and anthias shimmering in the light shafts. The remote, peaceful setting keeps the site pristine and the water clear, making it a lovely wide-angle photography trip as much as a dive. It is a perfect half-day from Paxos, pairing geological drama with the soft beauty of the Ionian’s small life and showing yet another facet of the region’s cave-diving riches. Blue Caves (Errikousa, Paxos) sits within Ionian Islands – Lefkada, Paxos, Antipaxos and is best described as a cave and cavern dive. The water here is typically clear, and the profile — from around 3 m down to 22 m — gives beginner divers a rewarding range of routes. Among the life you can expect are Soft Coral, Nudibranch, Common Octopus, Cuttlefish, Anthias. The site rewards a slow, observant approach, and good buoyancy keeps both diver and reef safe. With sensible planning around weather and boats, it ranks among the more memorable stops on a Greek diving trip.
Dive Briefing
"The boat anchors at the cave mouth and the group enters in pairs, descending to the sandy floor at 5–10 m. The guide leads a slow circuit of the main chambers, using a torch to reveal soft corals and nudibranchs and reminding divers to keep fins up so the blue light is not clouded by silt. Photographers get a clear signal for the best light moment. The shallow depth allows a long, relaxed dive, finishing with a safety stop in the bright entrance. A DSMB is deployed before surfacing to warn boat traffic. The dive ends with a careful re-entry at the boat. On the day, the guide runs a full briefing covering entry, descent line, depth limits and the turn point. Divers follow the plan at a relaxed pace, keeping close to the group and watching depth and gas. The route makes the most of the cave and cavern features while staying within no-decompression limits. A safety stop in the shallows rounds off the dive before a controlled ascent and DSMB deployment if needed."
Signature Marine Life
Soft Coral
Alcyonium species
Best: Year-round
Nudibranch
Chromodoris species
Best: April, May, June
Common Octopus
Octopus vulgaris
Best: Year-round
Cuttlefish
Sepia officinalis
Best: April, May, June
Anthias
Anthias anthias
Best: Year-round
Safety & Hazards
- Silt inside caves
- Boat traffic
- Disorientation without torch
- Limestone edges
- Surge at entrances
- Sun exposure
Traveler Notes
Who is this for?
The Blue Caves suit Open Water divers and above, with shallow depths and a sheltered, cavern-like environment that is more about light than challenge. They are a favourite of photographers and of anyone who loves soft-coral caves, and a great second dive of the day. Beginners should focus on buoyancy to preserve the clarity, while experienced divers enjoy the reflections and the macro life in the recesses. Confident boat divers will get the most from a calm, sunny window. It is a good choice for beginner divers who want a mix of marine life and scenery without extreme demands. Photographers will find plenty to frame, and buddy pairs can explore comfortably once briefed. Those new to the area should dive with a local centre to make the most of conditions and site knowledge.
Quick Stats
Dive Logistics
- Paxos Diving Center
- Ionian Dive Center
Photography Info
Best for: wide_angle
Nearby Stay
Gaios Hotel
Gaios • 1km away
Lakka Beach Hotel
Lakka • 8km away