A few kilometers from the pools, this has a wonderful tropical feel to it. Accommodations are in big, rustic thatched-roof huts. Reservations are absolutely essential. There's plenty to do here: kayaking, 10m-high waterfalls to jump from, caves to explore, jungle trekking and visits to nearby Q'eqchi' communities.
See the website for shuttles from Río Dulce or Flores. Local tour prices start at Q125 per person (minimum two people). Most tours are doable in a day and cost Q150 to Q250 per person.