The description for this series of caches can be found on the first cache's description at https://coord.info/GCBD225 as can the suggested car parking location.

And so to the actual puzzle….
Iwxh rprwt rpc qt udjcs pi cdgiw uxuin dct otgd iwgtt edxci dct udjg iwgtt pcs tphi otgd udgin htktc edxci ild txvwi dct pcs xh pi iwt qpht du p hbpaa igtt fjxit radht id iwt hbpaa sxirw/higtpb. X hjeedht xi lxaa qt p higtpb xc iwt lxcitg. Xi lph p sxirw lwtc X wxs iwt rprwt.