background balls bubble bubbles buoyant carnival ephemeral float joy light spheres texture transient attached attachments buoyancy canoe canoeing canoing cold connected equipment equipped estuary experienced gloved gloves kayaking kayaks lines motion movement moving outdoors paddlers paddles paddling prepared risks safety seated sit-ins sport sporting suitable suitably-clothed transport travel travelers travellers vests water winter wintry active activity canoeists canoes double-bladed-paddle effort exercise keeping-fit leisure leisurely outdoor outdoor-sports outside paddle paddle-blades pastime recreation recreational risk risky river sunburn transportation waves wet workout canoeist damp kayak kayaker perspiration perspiring sportsman sweat sweating adult boy canoists father foliage man outdoor-recreation riverside trees