So, 3 days ago I went snorkeling off Mnemba island in Zanzibar. Everything went normal, and we start heading back. I grab my net bag and put my black fins, black mask, snorkel and black wetsuit inside.

Once back ashore, I grab my bag, jump off the boat and head to the rental office to return the equipment. At that point I feel my bag is moving somehow.

At first look, it seemed like a flat, black, worm squirming quickly. After rotating the bag, I realised I was looking only at the tail of an otherwise ~1m long Black sea-snake, one of the most venomous reptiles I could find, trying to get out of the net.

How it got there, I have no freaking clue.