Where are we camping? Zephyr Cove ? It's the only campground that still has sufficient space. We probably wouldn't have time to run the easy version of Barker on Saturday if we camp at Zephyr, so we should probably try Genoa Peak instead (which is 2WD-friendly).

Zephyr Cove campsite map:
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4x4 in uppercase is $X$!!!
1997 R50: VG33E/RE4R01A/TX10/3.7/R200A/ARB/4.636/H233B/ARB/4.636/321150R15