A guided kayak tour with a bilingual guide educated on Ometepe’s flora and fauna is truly a unique experience. The remarkable Istian estuary offers a wonderful opportunity to see monkeys, caimans, turtles, and innumerable varieties of birds and flora. For those who love to kayak, you can kayak from LA OMAJA to the river Istian. This option takes about 3-4 hours round trip. The less rigourous option is to take a motorboat to the entrance of the river Istian. From there you will proceed in your kayak up the river and back, requiring about 40 minutes to an hour of leisurely kayaking.