At least two out in the water. Sorry for the close ups but they were a fair way out but the dorsal fin was rounded and the facial marking look like it could be Hector's.
Had this whale identified by the Orca research team as a female called "Nicky."
Seen in conjunction with the Boto, Amazon River dolphins.
Oceanic dolphins are members of the cetacean family Delphinidae. These marine mammals are related to whales and porpoises. They are found worldwide, mostly in the shallower seas of the continental shelves. As the name implies, these dolphins tend to be found in the open seas, unlike the river dolphins, although a few species such as the Irrawaddy dolphin are coastal or riverine.