My husband and I will be in Kauai in July, staying on the North Shore. We are debating renting kayaks and bikes for the week and saving money on organized tours or just doing the tours for saftey reasons - but we would really like to save the money. We have experience kayaking and mountain biking - but are not experts by any means. We would love any and all advice. This will be our first time in Hawaii and we plan to really make the best of our time in Kauai. Thanks in advance!