The trail runs mainly on the shore of the Gulf of Käina. The avifauna of the Gulf of Käina, which consists of 192 species, is interesting and biodiverse. In autumn 10–15 thousand water and coastal birds stop on the Gulf. The trail consists of a longer Orjaku (3 km) and a shorter Roostiku circle (0.7 km). There is also a bird-watching tower, three observation platforms, a mud bridge, a recreation site with a shelter and a boardwalk of approx. 0.4 km in length in the reed field. Useful information: The trail is marked with arrows and can be completed without getting one’s feet wet.