Happy Adventure is an outport village on the Eastport Peninsula in the Canadian province of Newfoundland and Labrador, first established in 1710 . , the population was 183.
Happy Adventure consists of three well-defined inlets known locally as of Upper Cove, Little Sandy Cove, and Lower Cove (which also contains a smaller attached cove known as Powell's Cove).
The origin of the village name is a matter of some controversy. According to local lore, the name, which was first referenced in 1817, could have had any one of three origins. Some speculate it is a reflection of the joyful experience of the first settlers in finding such a welcoming environs. Alternatively, it has been postulated that the community was named to commemorate a ship belonging to 17th-century pirate Peter Easton. Still others suggest the community was named by George Holbrook, a British Admiralty hydrographer. Holbrook surveyed Newman Sound in 1817 and sheltered in one of Happy Adventure's coves during a storm.
In the 2021 Census of Population conducted by Statistics Canada, Happy Adventure had a population of living in of its total private dwellings, a change of from its 2016 population of . With a land area of , it had a population density of in 2021.