A two-stage multi in Plaistow Town Forest.
At the given coordinates you will find a familiar object if you've found others in the "Just" series. You will need to have special knowledge and/or special equipment to gather the final coordinates. At WP1 you will subtract the numbers from the first waypoint coordinates to determine the final.
Please do not unscrew any of the screws/bolts! A screwdriver is NOT the tool to use to discover the coords.
JC1 - hfr yvxr n crevfpbcr. Svany vf 6' hc ba oenapu cbvagvat jrfg.