You want to experience the lay of the land from the shallow waters in a small vessel. With most things planned out, you don't need to worry about what comes next, you can just relax and take it all in!
You want to get the most out of your trip by diving into the local culture. You enjoy the freedom in winging it and seeing what comes next, but still have the opportunity to have local guides show you around.
Although groups are fun, you enjoy exploring on your own. You want a unique travel experience that doesn't happen in large groups. Exploring both elements of water and land travel, are on your future travel list.