There is absolutely NO dressing up on the Xpedition - it is casual and practical. You may want to take one smarter outfit for the dinners in Quito. Wet landings are easy - suggest you get a pair of water shoes to protect your feet but most are sandy beaches. Remember that the demographic on this cruise is mostly 50+ so it is not going to be too hard! Any other questions just shout..
This is a very useful site: