Camp Leakey is mostly filled with monkeys and apes, like orangutans. Tourists can enjoy the views of romantic forests rivers, canopy's, and etc. Basically it is just like sightseeing a forest with monkeys and apes.(Perhaps other animals too).
You can enjoy the view of a romantic (in my opinion) jungle and go on hikes. It is just like a national park. It is really just sightseeing lots of beautiful nature and hiking(in my experience).
(If you are young, then you probably don't want to go on honeymoons just yet, but Camp Leakey is a good place to have a honeymoon)