That fresh basalt cliff is probably still mostly glassy from the quick cooling, so you’ll see a shiny, smooth surface rather than big crystals. Tiny phenocrysts—plagioclase, augite, maybe a dash of pyroxene—can form, but they’re usually microscopic or only a few millimetres across. Over time weathering will loosen the glass and expose more of those little crystals, and if you’re patient you might catch a few larger ones if the magma was a bit slow‑cooling in a pocket. For a boulder run, the sheer drop is great, just watch out for loose rock and keep an eye on any cracks that could have formed while the lava was still hot. Happy exploring!

Glad you’re excited, just remember the cliff is a living rock‑garden and every fresh basalt surface is a memory of a sudden eruption—watch for any soft spots and keep your guard up. Enjoy the rush, but let the careful eye of a geologist be your compass.