This problem is the namesake of the Dark Lantern Boulder. Sit Start under the V-shaped side of the boulder with hands matched on the left jug. Pull on and work your way under the boulder to the left. Use unique and powerful movement to compress your way toward the light. Save some fuel for the top out! V5
Sadly, as of 2022 this problem is no longer accessible due to an enormous log jam covering half of the boulder.
FA: D. Pfaff (2021-07-14)