Unfortunately it's batteries and energy have gone flat so needs to recharge. Signing the the log will recharge the cache and when full it may move on. So until then it remains hidden and awaits you help, luckily was able to post this SOS before it was completely drained.
But that's not all. as in all good time travel stories there is a TWIST. You NEED TO SOLVE THE PUZZLE ON HOW TO OPEN THE BOX THAT HOLDS THE LOGBOOK.( needs no tools or force to open the box) NO NEED TO BREAK IT !!!!!
Care and stealth required or cache may have enough energy to move and dissappear from this spot.
Only logs signed on logbook in box count
Cache is in an area that has a historical building, gate is locked but has foot access, there is nearby parking. Care is required as you need to cross railway and the sea is close and keep a lookout for Oamaru's little residents depending on the time you visit.