Sea bottom is a steep sandy (muck) slope starting from 3m and going down to more than 40m. The slope itself can be boring unless you are into macro life (tiny crabs, shrimps, nudibranches etc). It is a heaven (for local standards) for macro photography. Beware: patience, good eyes and a bit of knowledge about what you are looking for are essential. 
Also essential are good diving skills as the slope is quite steep and any mistake can stir up tones of sand ruining visibility.
Somewhat north from the beach and at exactly 40m lies the wreck of a Messerschmitt BF 109 from WW2. The plane lies upside down and only the back half is visible. A bit further up the slope (~30m) one of the wings with a gun still attached can be seen.  
The wreck is a demanding dive (40m deep, low visibility and hard to find) and hence to be enjoyed safely divers need appropriate planing and training (nitrox, deco gas etc). 
For divers interested in macro life and photography the shallower parts (5-20m) are very good too. 

Access is very easy by car. Exit the highway at the Kalami exit and after ~200m take a sharp left turn to a small road leading downhill to the sea. The best entry point is a small sandy beach just before where the road turns left again uphill and away from the sea. 

Airplane wreck, Kalami