DivePlannerPro says diving in the Prince Islands is possible year-round, with best conditions in late spring through autumn and variable visibility in the Marmara.
Protected island dive area in the Princes Islands.
Protected island dive area in the Princes Islands.
Nehandros is a protected island site in the Princes Islands south of Buyukada, where rocky structure and Marmara conditions make it more of a boat dive than a resort-style stop. The area is better known for its remaining marine-life pockets and seabirds than for easy logistics, so it suits divers who are comfortable with variable water and guided access.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Best Season
Late spring through autumn, though diving is possible year-round.
Typical Conditions
Rocky island structure in the Marmara Sea with variable visibility and current.
Site conditions, restrictions, and access requirements.
Access Restrictions
Boat access and local conditions should be checked with a dive professional familiar with the island.
Legal Notes
The island is part of a protected area in the Princes Islands region.
Community notes to help plan your visit.
Access
Boat access from the Princes Islands side or Istanbul dive boats.
Aquatic Life
Stingrays, sea bass, anchovy, and other small fish are reported around Nehandros, with seabirds above the island.
Facilities
Basic boat-dive support from local operators; facilities on the island itself are limited.
Species commonly reported at this site, with direct links into their wildlife guides.
Community dive logs and visit reports for this site.
Average conditions based on logged dives & visits.
Last Updated
Research Sources
DivePlannerPro says diving in the Prince Islands is possible year-round, with best conditions in late spring through autumn and variable visibility in the Marmara.
The Marine Life Conservation Society says Neandros Rabbit Island has been designated as a protected area and is part of biodiversity monitoring in the Marmara Sea.
The Turkish dive article mentions Nehandros and reports ray, sea bass, anchovy, and lobster sightings in the area.
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South-side hole dive with soft growth and calm-weather boat access.

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Istanbul island boat dive with reef, wall, and deep sections.

Boat-access island dive with abundant small marine life