Nautelle Wetlands is an area in Breath of the Wild.
Located at the southwest part of the Lake Tower region, the Wetlands consist of a shallow pond of water with grass and some trees growing. There are some Winterwing Butterflies and Cold Darners that will fly around the area.
There is a lone Korok Seed to collect here at the wetlands. Climb the tree in the center of the area and you'll find a small tree stump on top of it. Step on it and a yellow circle will appear on the large tree to the west. Make it over to the circle in time to find the Korok.
Nearby Korok Seeds
Race from the top of one tree to the other.