Kranevo Cargo Wreck

A short boat run from the Kranevo coast drops you onto an upright cargo ship in 18m of Black Sea water, with the surviving superstructure rising to about 14m. The descent passes through a thick warm layer to roughly 10-12m, then crosses the thermocline that everyone here remembers, with bottom temperatures falling by around ten degrees in seconds. Divers describe the change as instant rather than gradual. On a calm day after a windless spell you can pick out the silhouette of the hull from above and read the broken lines as you drop in; after a blow, visibility shrinks to 2-5m and the wreck reveals itself one piece at a time. From the bottom the dive moves around the broken hull, easing into the penetrable sections of the superstructure for divers carrying the right ticket and a torch. Bottom time runs about 45 minutes before cold or current sends the group back up through the thermocline to a long, comparatively warm safety stop.

This reads as exploration diving more than destination diving. The ship has no documented name, no recorded sinking date, no known cargo, and operators frame it openly as a feeling of exploration in waters that are not too well known. Within Varna's small wreck inventory it is the entry-level option: a penetrable superstructure that fits within OW limits, on a budget coast, paired with the unusual experience of crossing a sharp Black Sea thermocline rather than paying Mediterranean prices for a famous ship. Divers come for the thermocline novelty and the affordability. The wreck does the rest by simply being there, anonymous, upright, and accessible from a resort beach.

Visibility is the variable you cannot plan around. It tracks the wind: calm days give 5-10m, a recent blow drops it to 2-5m, and conditions can change inside a single trip window. A torch is essential, both for the inside of the superstructure and for orientation when the water turns murky. Dress for the layer below the thermocline, not the surface; 5mm is the minimum, with semi-dry or drysuit a regular call for comfort once you cross 12m. Trips are usually full-day, two-dive boat days, often with a minimum-divers threshold, so contacting an operator a few days ahead is the practical way to lock the dive in.