The surface of the lake and the bottom of the lake were two different worlds.
The sky was covered by dark clouds, which made the forest dark. It also made it difficult for sunlight to shine through.
When the team was around five meters deep, they felt like they had sunken into a swamp and could not see a thing.
Even if superhumans' visual cells were more developed than normal humans' and they could see when normal humans would be blind and sense spirit energy fluctuations, they could only see waves of colorful undercurrents flowing at the bottom of the lake. They illuminated all sorts of strange aquatic creatures and bewitching aquatic etherealized plants.
Fortunately, the aquatic life and plants sensed the powerful presence from the superhumans and were baffled by the deep water bombs earlier, so they did not dare to go forward to bother the humans. They just hid away from them.