Alright, I've read other threads. Some older ones. Going to be in Costa Rica for about 7 days. Have excursions planned to see waterfalls, mangroves, sloths, monkeys, catamaran with the dolphins, and sunsets from the tree house on the coast. I have never taken my camera gear on vacation, but have always opted for my iPhone. It does ok as far as vacation pics go, but looking to do more this time. My gear: D750, 24-70mm 2.8, 70-200 2.8, 200-500mm 5.6, 50mm 1.8, 10-20mm DX 4-5.6 I know I definitely want my 24-70 and 70-200. I'd like to take the 200-500mm, but I'm thinking it is not going to be fast enough to get close to the animals in the trees and such. The bulk of it also is a drawback. I think the 50mm might be good for it's speed, but I think that's covered well in the 24-70 anyway. Using the 10-20mm in DX mode doesn't give me true 10-20, so I think the 24-70mm covers that as well. A tripod would be nice for the waterfalls (have ND filters), but it might be too much trouble to setup anyway as I'll be in a group. It would be nice back at the house for sunsets. I can bring a small manfroto table-top tripod that might work as well. I expect to have to take family group photos. Any thoughts or advice based on experience?