As you can read in Matt's link, the California Chapter of NAFHA is hosting the NAFHA National Event at Sacred Oaks Campground in eastern San Diego County. Please be clear to read the rules that have been posted for the event, including that it is a no collecting (even overnight) or bagging event.
The number of habitat types in the area, not to mention the ones that can be reached a short drive away, are spectacular. I thought that herpers who aren't familiar with the area might appreciate knowing what species are lurking there. These are some of the things we might find.
First off, the direct area of the campground is in unique mid-elevation desert relatively close to the border with several species found nowhere else in the United States (invert lovers also like the area, and probably birders too). The timing should be perfect for diurnal and crepuscular activity favored by the main target species. Herps that can be found there include:
Coast Patchnose Snake, Baja Coachwhip, Lyre Snake, San Diego Night Snake, San Diego Gopher Snake, Longnose Snake, California Glossy Snake, California Kingsnake, Speckled Rattlesnake, Red Diamond Rattlesnake, Rosy Boa, Desert Banded Gecko, Coast Horned Lizard, Banded Rock Lizard, Cope's Leopard Lizard, Baja Collared Lizard, Side-blotched Lizard, Western Fence Lizard, Granite Spiny Lizard, Coastal Whiptail, Wiggin's Desert Night Lizard, Granite Night Lizard, Gilbert's Skink
Just to the west are the coastal hills, a higher-moisture habitat with a entirely different set of species. Right now projections are pointing towards an El Nino winter that will last until the spring, which means there's a good chance that flipping season will still be going strong in April. Species found in the hills (beyond the ones I've already named) include:
Western Blind Snake, Western Black-headed Snake, San Diego Ringneck Snake, Striped Whipsnake, Red Coachwhip, Western Yellow-bellied Racer, Two-striped Garter Snake, Southern Pacific Rattlesnake, Southern Alligator Lizard, California Legless Lizard, San Diego Banded Gecko, Western Skink, Orange-throated Whiptail, Western Spadefoot, Western Toad, Baja California Chorus Frog, California Chorus Frog, Garden Slender Salamander, Monterey Ensatina, Large-blotched Ensatina, California Newt
Just to the east is a spectacular and beautiful low desert with one of the greatest assemblages of snake and lizard diversity in the United States. Diurnal herps will be peaking and nocturnal activity should have started as well. This area is home to absolutely beautiful scenery including low desert, rocky canyon, palm oasis, sand dune, and sandstone canyon habitat. Besides the herps, several endangered species like Desert Bighorn and Desert Pupfish are regularly seen. Additional herps that can be found in the low desert include:
Desert Blind Snake, Colorado Desert Shovelnose Snake, Desert Night Snake, Leafnose Snake, Desert Patchnose Snake, Desert Glossy Snake, Colorado Desert Sidewinder, Switak's Banded Gecko, Leaf-toed Gecko, Sandstone Night Lizard, Desert Horned Lizard, Flattail Horned Lizard, Colorado Desert Fringe-toed Lizard, Long-tailed Brush Lizard, Baja California Brush Lizard, Desert Spiny Lizard, Longnose Leopard Lizard, Desert Iguana, Chuckwalla, Great Basin Whiptail, Red-spotted Toad
Going further east into Imperial County brings additional species leaking in from the Sonoran Desert. Species found in Imperial County include:
Western Diamondback Rattlesnake, Checkered Garter Snake, Ground Snake, Sonoran Gopher Snake, Great Basin Collared Lizard, Colorado River Tree Lizard, Western Zebratail Lizard, Desert Tortoise, Rio Grande Leopard Frog, Couch's Spadefoot, Woodhouse's Toad, Great Plains Toad