 The 40 ha ( 99 acres ) of forests lying in the vicinity of the Dojlidy Ponds are administered by the Central Sports and Recreation Center in Białystok ( Polish : Miejski Ośrodek Sportu i Rekreacji w Białymstoku – MOSiR ) . The Dojlidy Ponds recreation area includes a public beach , walking trails , birdwatching and fishing . 
