Minninup Pool is a wide, calm stretch of the Collie River south of town, used for swimming, canoeing, fishing, and picnics. It is the easiest river stop if you want water and trees without committing to a longer bushwalk.
Come in warm weather, bring what you need, and treat it as a natural swimming place rather than a managed pool. The appeal is the quiet river bend and the jarrah-country setting.