Continuity mistake: When the woman with the glasses meets the other man for the first time after laying on the sand, the woman has sand on her back. In the shot when you look at her back the sand has disappeared.
Continuity mistake: When the jungle boy says "woman" to June, he points to his chest and puts his hand to the ground. In the next shot, he is pointing to his chest again.
Continuity mistake: When June is trying to teach the Jungle Boy at the side of the lake, the sand on the Jungle Boy's belly keeps disappearing and re-appearing between shots.
Continuity mistake: When June and the Jungle Boy are at the side of the lake, her negligee appears very wet and sandy but just a few seconds later it is now spotlessly clean.