We enjoyed both the Hiking Arenal Volcano and a Kayak Tour on the lake. Both guides, Gerald and Maderi, were very knowledgeable and great supporters of the environmental acts of Costa Rica! We learned so much from them both and they showed us some incredible wildlife and scenery as well as explained how to protect them. We found these types of tours to be our favorite excursions and they really enhanced our visit to Costa Rica! Thank You!