Two passengers are seated per boat within each party; we will never pair people with others from another party. This is the safest scenario, especially for novice boaters. If there is an odd party, as a matter of safety, one passenger will be seated as a rider with the tour guide/lead boat. Our boats can be driven by a single person however; we will require that person purchase both seats on the boat at the lowest price available for that tour. Please call us prior to arrival if you want to be a single driver of our boat.