The Available Models:22 Oasis Angler,20 Oasis Angler. For over 25 years Manitou has listened to its customers and designed boats to suit a diverse set of needs. The Oasis Angler is one such boat, designed for the whole family including a convenient new rear entry gate for swimmers and an optional Lowrance X4Pro fishfinder for those more inclined to put a line in the water. How fun is that?