Full course.. Test build underneath the main course plus real rocks.

An unfinished, bodged together test piece made from cardboard and expanding foam. Had fun testing our ability to add some greenery... average at best. New build options above the course but how we integrate the new entry and exit points without ruining old lines is tricky.
Ideas in the comments please

[@orrc16]

Very beautiful scale Park 👍😉 good job

[@wingnutbert9685]

May be an Alien inspired 'scape for the high up section you're thinking of. :) Great looking work!

[@pessimistprime9797]

Truly amazing course work.