A pump boat is an outrigger canoe

Outrigger canoe

The outrigger canoe is a type of canoe featuring one or more lateral support floats known as outriggers, which are fastened to one or both sides of the main hull...

 powered by a small gasoline or diesel engine. Smaller pump boats might be powered by the sort of small single-cylinder engine which might be used to drive a water pump. Larger ones are often powered by recycled automobile engines.

Pump boats are popular in coastal towns of the Philippines

Philippines

The Philippines , officially known as the Republic of the Philippines , is a country in Southeast Asia in the western Pacific Ocean. To its north across the Luzon Strait lies Taiwan. West across the South China Sea sits Vietnam...

 as a mode of inter-island transportation.

They are also used for Island Hopping

Island hopping

Island hopping is a term that refers to the means of crossing an ocean by a series of shorter journeys between islands, as opposed to a single journey directly across the ocean to the destination.- Forms :...

and other tourist activities.