Tour was very good, prompt start and excellent tuition. Got to see all the sights of waikiki and great photo opportunities of diamond head itself. The description when purchased said the tour would be 3 hours it was only 2 in the end. This was a blessing as our legs were quite tired by the end but really this should be advertised as 2 hours to not mislead. Recommendations bring water and sunscreen, despite the early start (7am),h awaii gets very hot very quickly. Also no time on the viator voucher meant I had to contact the tour operator separately, no issue just a slight inconvenience.