Glad to see that you are feeling better and suitably adventurous. I can see why they insist upon patrons getting a permit, and a waiver of liability because to negotiate that trail places you in great peril, and therefore they would be reluctant to let you enter because the hike would just be too... too .... perilous. It sounded better when John Cleese said it. Again, I'm thinking, you are descending and therefore, eventually, you will need to climb back out. You never film that part.
Whey to go, ending part #1 on a cliff-hanger. Well, not exactly a cliff, but the event horizon of a black hole that might lead to another dimension ... a dimension of darkness, a dimension of complete silence, you may be entering ... the Twilight Zone. The sound of the chopper sort of spoils the prehistoric illusion. Some sound effects would be great. Jungle sounds. Strident strings from violins ... an approaching Theropod. Ripples in the puddle. Cue the chopper. No, not that one, the one in the air ... I'm down here, gesticulate wildly, jump up and down, shout out "I'm down here". As if the pilot is going to hear you shouting. These films are so unrealistic. Sorry, not yours, just the one in my head. When does part #2 come out?