Highway 87 is 20 miles of eroded coastal highway that the state has allowed nature to reclaim. At low tide, there can be 40 feet of shell covered sandy beach in some places. At high tide, there might be less than a car width of tar-like asphalt clay between a 2 foot drop into the surf and a barbed wire federal trespassing sign. The beginning (approx. 8-10 miles) are really easy. Typical washboard of sand and shells. About 10 miles in, there’s an abandoned oil depot and the conditions got a bit rough for several miles with only a few places to really open it up. It made for a mild trail run. There’s about as much storm debris as there is asphalt/dirt/goo in some places so you have to watch what you drive over At the end of the line there is a nice and open beach. It is a pretty easy fun trip and great to explore.