Four kilometers north of Anchieta, the Tamar Project operates the Praia da Guanabara Turtle Research Station . Here you’ll find a 2km stretch of protected beach where turtles come onshore to lay their eggs every summer, plus an interesting museum of marine turtle exhibits. To get here, take any northbound Planeta or Sudeste bus from Anchieta. Ask to be let off at Praia da Guanabara and follow the signs 300m downhill to the beach.