Alofaaga Blowholes, Blowhole formation in Taga village, Savai'i Island, Samoa.

Alofaaga Blowholes is a coastal natural formation on the island of Savai'i in Samoa, where seawater is pushed through underground lava tubes and forced upward through openings in the rock. Several vents run along the cliff edge, and the height of each water jet varies depending on the strength of the waves hitting the shore.

The lava tubes beneath the site formed thousands of years ago when volcanic activity on Savai'i created large tunnel systems under the coastal cliffs. The sea gradually eroded these passages over time, opening the vents that are visible today.

The blowholes stand on land held under customary ownership, and the village of Taga, at the entrance to the site, charges a small admission fee to those who come to view them. The coastal track from the blowholes leads west to the old village of Fagaloa.

The rock surface near the vents is uneven and often wet, so sturdy footwear is a good idea before approaching the edge. The water shoots highest when the sea is rough, so a visit after stormy weather tends to offer the most activity.

The blowholes sit on customary village land, so Taga charges a small admission to view them. A coastal track from the site leads west to the old village of Fagaloa. The area has no fence, and the wet lava rock around the vents is slippery.