Tdearing Loc: Rockport, TX

Great series.

DougS Loc: Central Arkansas

Awe inspiring photography!

HRoss Loc: Longmont, CO

These are a beautiful set. Thanks for sharing.

LMG Loc: Arizona

Thanks Robert, I wasn't on a NatGeo tour but I am guessing the landings are handled the same way, with Zodiac boats. There are two types of landings, wet and dry landings. Bring a dry sack for your camera and lenses. Wear a hat and quick drying pants/shorts and a long sleeve shirt you can roll up the sleeves. Have a poncho in a backpack and a couple plastic bags. The plastic bags to kneel on. If it rains put the camera in it, rip a hole in the corner and poke the lens through. I have a crap knee so I wear a knee brace. It is an added bonus because it acts as a knee pad. I would use it even if my knee was fine. ... a lot of kneeling to get animal shots. Have a couple pocket cloths to wipe dust and moisture off the lens. I would leave the Dry sack on the zodiac or beach and put everything into my backpack.
I only used one camera body when out shooting and brought three lenses on each landing. they were usually a 24-70mm 2.8, a 100 - 400 mm 4.6 and a 14mm 1.8. Sometimes I brought a 70 - 200 mm 2.8 and 24mm 1.4. I don't think I used the 24mm at all but the I used the 70 - 200 several times and except for a few shots I didn't need too much more pull than 200mm. The animals do get awfully close. The main reason I took the 100 - 400mm out more than the 70 - 200mm was because the 100 - 400 has a closer focusing distance. There were several times I yearned for a macro.
2 chargers and plenty of cards. I brought a computer, and two 2 terabyte drives and cables. I ended up shooting 1.5 terabytes of stills.
I also brought a Monopod which I used sparingly and also a tripod which I never used. You are almost always moving while shooting. Whether it be from the ship, a zodiac or walking. A lot of run and gun type of photography. Because of this keep your shutter speed high. Several people I was with got tons of motion blur, especially shooting from the Zodiac. I had my camera set to higher ISO's than normal and very fast shutter speeds to compensate while on the zodiac, sometimes substantually higher when there was cloud cover.
I also brought a GoPro to shoot underwater. The quality is decent and I posted some a few months ago from this trip if you want to check out what that looks like. I ended up just shooting video and taking stills from that.
Bring sensor cleaning materials. Some of the Islands have very fine sand, almost dust and depending of how well your camera is sealed it may get dirty. I changed lenses outdoors and had to clean my sensor in the evening.
Last and most important, befriend the naturalists and crew. If I think of anything else I'll let you know.

arperry Loc: Miami/Florida

Magnificent photos.

Bubalola Loc: Big Apple, NY

Terrific, LMG!

RickL Loc: Vail, Az

Enjoyed being there with you, nice set.

topcat Loc: Alameda, CA

Very nice set