The first stage of this cache uses a CHIRP module, if you cannot receive the CHIRP signal you are unable to do this cache.
(There is an ANT+ app that should pick up the CHIRP signal for phones but we have not tried it - beware your phone may convert the co-ords to Lat/Lon these can be input into most mapping systems and will take you to the correct location.)
In order to obtain the final coordinates you will need to set the CHIRP on your GPS to on.
When you are within 10 metres of the 1st stage the final coords will be sent to your GPS by the CHIRP transmitter.
The final stage is within walking distance and is NOT suitable for vehicles