We have gone out with Captain Zodiak several times. The focus is on snorkeling, which is always one of the highlights of our trip. They do give you a peek into caves and lava tubes and talk a little about the history, but... More
We have gone out with Captain Zodiak several times. The focus is on snorkeling, which is always one of the highlights of our trip. They do give you a peek into caves and lava tubes and talk a little about the history, but the boats do not/cannot go further than the mouth of the cave/tube. As for waterfalls, I do not recall seeing any from the boat. If you are interested in exploring lava tubes and caves, one option is unguided hiking opportunities inland. From the coastline, you may need to go with a diving service to explore tubes and caves.
