This is an experience that all sea lovers should do. I really enjoyed the sights that the crew showed us. The staff was more than eager to help when I booked a tour for their time and not the ships time and was not able to attend the tour I was scheduled for. They made accommodations for us to attend the tour that was leaving when we arrived at the site. I was very pleased that they fixed my mixup. I would definitely use Viator to book activities again.