Fungal bioluminescence, fireflies, clearings full of fireflies with a few in caverns and around fruit plants, caverns bright as day from fungal lights, bioluminescence a cool blue.
Clear view.
Overgrowth on inanimate objects, moss on tree trunks and some rocks and above the tree line, plants are vibrant, normal amount of plants.
No wind.
Rain is falling with rivers full of rapids and many caverns flooded, normal amount of rain for this level, normal river strength for this level.
Metal and rock unreliable, 50% decreased tensile strength for this level, ground sturdy.
If plants permit there is vine-thatching over smaller gashes, cavern entrances are fully crusted over, crust normal to remove, vine-thatchings normal strength.
Normal landscape.
Normal fauna and flora behaviour.