The room is comfortably warm and there is a couch that is an odd, bright color. The four walls of the room slope up gently to a skylight which is letting in vast amounts of sunlight. There is a clean mirror on one wall and a clean smooth sink underneath of it. In another end of the room is a large tub with a flexible showerhead.
The forest is a rainforest, and it's very humid and bright. The trees in the forest are very tall and tower above me like skyscrapers. There are a few small trees in the shadows of the tall ones.
The path is muddy and gravelly and there are a few wooden planks shoved into the slopes of the path to form rickety steps. It's not too wide and not too narrow and sometimes there are pots of open water in the pathway.
The water is very very clear and warm and moves relatively fast, splashing against my hand with force when I dip it into the water. It's something like a river. Small pebbles and gravel are being carried along by the river. There're strange colors swimming around in it, like bubbles of gasoline.
The cup is thin and tall and is see-through. The color of it is a bright electric green. It's clean for the most part, but has lip-prints of where someone else has drank from it. It's wet inside.
The key is small and silver and is fairly heavy. It shines hard. It's quite thick, for its size. It's smooth and warm to the touch, as if someone else has been holding it for a while before I found it. I hope it unlocks some kind of portal to another world.