There is a conservation site on the trail leading from Crater Lake to Lover's Leap Camp; they're working their way down the trail from the Crater Lake end, so they should be somewhere close to the junction with the trail to Bear Caves by the time your group gets there. Probably the easiest way for your group to catch this is the morning you hike from Miner's Park to Lower Bonita. Take the trail to Crater Lake and top of your water, then leave your packs there and hike down to the site. If you make it there early enough, you'll have time for program at Crater Lake before your climb up to Fowler Pass.
Warren Williams <firstname.lastname@example.org>