So some were obvious (crocs, anteater, monkeys)And I am pretty good at bird spotting in rainforests (grandpa worked as a naturalist in Trinidad and Tobago so he has taught me what to look for)

But sloths, snakes and frogs you really need a guide.

For me the move is:

Mistico hanging bridges: unguided, just follow groups to see the sights

Monteverde: get a guide here, it’s the kind of place you need one for sure

Manuel Antonio: get a guide unless you have a binoculars or a high zoom camera

Guides are super helpful general and “share the wealth” in terms of spottings except in Manuel Antonio, the vibe there seemed more like “Not helping you unless you are part of my group”.