Going into the Amazon rain forest is nothing like anything I've seen/done before in my life. Combine that with going with a group of like minded people and an organization that knows the place, and you have an amazing experience.
These people have their own center in the rain forest. They help the local communities in lots of different ways. They know their way around the area and know some great places to visit in this already amazing environment.
Lots of different abilities, from planting seeds, planting and distributing seedlings, to working with bees and producing Tapioca flour. They love to share their knowledge and experience, and they let you participate in all these activities.
Well balanced between hard work, sight seeing, meeting the local community and free time.