In Estonia, one may not prevent passage along the beach of a body of water (sea, lake, river).
Some land owners try. It's legal to ignore them and travel along the shore, but if a river valley is densely settled and every tenth person has built a fence too far, it becomes somewhat harder to fish there.
As for dry land - if it's not fenced in, then from dawn to dusk, without damaging crops or landscape, one is allowed to roam on foot, with a bike or boat, on skis or riding a horse.
Unless the owner forbids:
by default, it's allowed to set up a tent for up to 24 hours
by default, it's allowed to pick the fruit and herbs of naturally growing plants and mushrooms (not planted or sown) and fallen wood
Making a fire is another matter. For this, getting the agreement of the owner is required. It's also totally forbidden by fire departments at certain times.