Evolution: Raft Survival

The scenery gradually opens up, and the blue sky and endless sea come into view! "Where am I?" Ren could only feel his head aching. There seems to be a huge disconnect between the information he's gathered so far and his memories. "No, I'm dead, aren't I?" The last image Wren could recall was of falling into a lake and drowning after being drunk, followed by a series of painful struggles, suffocation and unconsciousness. . . He should still be in the water with the feeling coming from his body. Except, how did he get to the beach? Is there a passage to the sea at the bottom of the lake? Also, why can he float on the water? He can't swim. Is it the dense salt water that makes him float? Why didn't he die? Headache. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.