HMAS Arrow (P 88) was an Attack class patrol boat of the Royal Australian Navy (RAN).
During Cyclone Tracy on 25 December 1974, Arrow was driven ashore and sank at Stokes Hill Wharf in Darwin with the loss of two sailors. A Petty Officer, and an Able Seaman.
As a Letterbox Hybrid cache, you will find a logbook AND a Stamp. The stamp is not a trade item but intended to stay within the cache. Use it to stamp your own notebook, and stamp the logbook with your own personal stamp, OR alternatively, simply date and sign the logbook as you would normally do at any other geocache. Again, the stamp and logbook remain in the letterbox for the next visitor to use.