Image dump

having taken a quick read through my extracts, I hit my favourite site for random images for some inspiration and came up with these

For the descent down the volcano:

 

(image credit: Michael Nichols, National Geographic)

 

(images credit: Jason Gulley)

 For the Mushroom Jungle:

(image credit: Jan Vandorpe)

(image credit: Jan Vandorpe)

(images via 1, 2)

(image credit: TAND)

For the underground sea (or more specifically the underground thunderstorm):

((U.S. Air Force photo by Senior Master Sgt. Ray Lloyd))

(image courtesy: Roger Taylor)

 

Picture taken by Rob Dekker, courtesy: Madeira)