In Sweden, the right of public access applies. What does that mean? Quite simply: Everyone may move freely in nature (except of course on private properties) and use nature for themselves in a way, in which one does not harm it. So you can hike and cycle to your heart's content, every lake is available for swimming and boating and fishing is permitted in all state waters. Camping is also allowed as long as you are not on private property or in sight of a residential house. And even campfires are allowed if there is no danger of forest fires. It is also allowed to pick wild flowers, berries and mushrooms.