Let me help about the rock thing. The rock separates the new unloading area from the old parking/unloading area. The signs tell you to park farther back after unloading in this new area.

All my maps show BH lake as in the park.

Jimmar, If you try portaging kayak gear,i.e. lots of small bags,,,try a sling over your neck & shoulders and carabiner the bags together at the ends of the sling,,,trouble then is keeping them out from your legs as you walk.

Continue as you were.