Oandu Beaver Trail is short and interesting to see beaver dams and nice valley forests. OK for short walking, including some stariways. Ca 100 km from Tallinn, near Altja. Less than 2 km long.
Track starts from N59°34,3246' E026°06,7352' (parking).
Track is recorded in winter, no snow, plus degrees, but You can follow it exactly at any time.