Blue Rock is exactly that a large blue rock.
From the parking area just off the main road located at 32° 19.771 S / 116° 06.883 E
There are two walks you can take a half hour tour and a 1 hour tour so naturally we chose the 1 hour tour which actually took 40 mins. Follow the track with yellow arrows and it will take you quite close to the final destination. This area can be accessed from either side, Jarrahdale Rd. off the South Western Highway or from Armadale via the Albany Highway.
Starting cache contents include Star Wars watch, Rabbit bum bag, Address Book, Body Lotion, Flash Light Key Chain, Screw Driver, Magnet, Math's Set, High Speed Car, Pencil, Sharpener, Log Book and Cache Cards.
Also contains a First Finders Certificate.