Breath of the Wild
Koto Pond has several Blue Bokoblin as well as, potentially, some more dangerous Black Bokoblin and Silver Bokoblin. Shallow water is found throughout the pond, which encourages the growth of some Fleet-Lotus Seeds, as well as some Hylian Shrooms and Ironshrooms.
There are some sparkling lights moving around the pond and if Link is able to catch them, he will find a Korok.
Nearby Korok Seeds
Examine the fairy lights circling this area.
Jump or dive into the ring of flowers in the small pond.