Complex sentence: The type of rafts used on the Tully are 14-foot, eight-person paddle rafts; that is, each person on the tour is a part of the team manoeuvring the raft down the river, commanded by an experienced river guide.
Split into simpler sentences: The type of rafts used on the Tully are 14 foot, eight person paddle rafts. That is, each person on the tour is a part of the team manoeuvring the raft down the river, commanded by an experienced river guide.