The only really useful bit of information that was on this Costa Rican episode was showing how to properly use a knife to cut down a tree. With a baton! Of course, He did use a rock to beat against the serrated edge of his knife, so thats a point against him.
More points against him? He chugged JUNGLE water! I dont care how "careful" you are, jungle water is NEVER EVER EVER EVER safe to drink raw. Especially not if your a white boy from England. Dont do it! If you do do it, dont be surprised when your emptying your intestines from both end all night long.
He wasnt just hiking down the river. He was bounding in great leaps from one pool to another, not having a clue what the ground was like under that brown water. But what is amazing is that he had the ENERGY to do all that jumping around after having such an intestinally challenging night. And this is AFTER he decided to climb UP a waterfall, Go find that milk tree, Lick it till he got splinters in his tounge (it wasn't exactly a gusher of a tree), THEN go back for his leaping from pool to pool trick... and oh yeah, he hadnt had a meal he could keep down in two days at this point.
Then there is the whole mangrove thing. Your right, he absolutly did NOT go climbing around the mangroves for 6 hours when he had a perfectly good raft just sitting there - NOT tied to anything but amazingly still there after his half a day journey.
This show is a joke. I wont be watching it anymore. It gives me hives.