As part of the International Year of the Reef, the public is invited to join the Nature Conservancy on fish monitoring and algae cleanup expeditions happening twice each month through December.

The next algae cleanup is scheduled for July 1 from 1 to 3 p.m. Volunteers should meet Eric Co, the Nature Conservancy's O'ahu marine coordinator, at the empty lot on the makai side of Paiko Drive. All the algae removal supplies will be provided.

Volunteers are asked to bring closed-toed shoes (tabi are best), sun protection and a towel. Wetsuits are optional.

The next fish monitoring day is July 11 at 9 a.m. at the Hawai'i Kai boat ramp.

See www.iyor-hawaii.org for more information.