Loo Dog Park is one of the largest in Harjumaa, located near the Pirita River. The park is divided into three separate enclosures, one of which is especially large and an ideal place for your furry friend to run and play freely. Loo Dog Park is one of the largest in Harjumaa, located near the Pirita River. The park is divided into three separate enclosures, one of which is especially large and an ideal place for your furry friend to run and play freely. There are no workout equipment in Loo Dog Park, making it perfect for longer runs. The grass is partially mowed in summer and partially grows tall, with many different trees, creating a generally pleasant and peaceful natural environment