Explore the leidarendi lava tube in iceland by jeep on this adventurous 3 hour tour from reykjavik follow rugged countryside routes through the blue mountains by jeep with a guide and admire sweeping views over the rocky landscape with your helmet on delve into the leidarendi lava tube and marvel at the spectacular rock formations held within walk and crawl through the 2 952 foot 900 meter tube and discover an underground world hidden from sight along the way gain insight into the cave