How can I get chests out of the water?

If a chest is wooden, far out into a body of water or both you can use the Cryonis rune to raise chests out of the water. Aim the rune right underneath the chest then jump onto or climb onto your cryonis pillar. If the chest is far out into the water and you can't cast your rune due to the fact you're swimming just build of chain of cryonis pillars to the chest then raise a pillar underneath it.