It's been a while since I've scoured the forums....but here's my question. Going on a 7 night Mexican Cruise in August. Never been on a cruise before. Between my dad and I we'll have a 5DII, and 60D. For lenses, we have two 24-105, 50 1.8, 50 1.4, 85 1.8, EF-S 10-22. We'll be headed for Cabo and Puerto Vallarta. Should I rent a lens? **My wife and 1 1/2 Year old son is also part of my gear list.