Penguins And Turtles

The South Fork Natural History Society will host a lecture on Saturday at 7:30 p.m. that will feature slides of rare Antarctic penguins. On a recent visit to Antarctica, the photographers Irene and Myron Brenton were able to photograph colonies of gentoo and chinstrap penguin chicks, among other unusual birds.

Dessert and coffee will be served at the society's museum in Amagansett. A call to the society's Natureline will bring directions.

Also on Saturday, the East Hampton Trails Preservation Society's Abbie Barber will lead an 8 a.m. walk along Main Beach in East Hampton and the vicinity. Hikers will meet in the beach parking lot.

The wildlife rehabilitator Mindy Washington, whose specialty is box turtles, will talk about these long-lived reptilian residents of the South Fork at 11:30 a.m. Saturday, at the offices of the Group for the South Fork in Bridgehampton. Members of the audience will be allowed to bring in box lunches.

On Sunday, the Southampton Trails Preservation Society has scheduled a 10 a.m. horseback ride, limited to 10 horses, along the Long Pond Greenbelt in Bridgehampton. It will meet at the corner of Norris and Narrow Lanes.