My wife and I went to Costa Rica for our honeymoon. One of our stops was in Tamarindo, and while we were having lunch, two of their FJ40 Landcruisers drove right passed us and parked next door. I went and talk to the folks and they set us up on a tour right away. We had no plans for Tamarindo, and I am glad we did this little excursion. We went to a beautiful private beach which we had to lock into four wheel drive to reach. Our guides pointed out howler monkeys and showed us a termite nest. He also ate a few termites and encouraged the rest in our group to also.... of course, I was the only one! :0) The next time I am in Tamarindo, I am definately taking another tour. They have promised to change the route to keep things interesting!
I highly recommend this company if you are any where near Tamarindo. Do the full day or the sunset excursion.