Welcome to another in the GSM series. The cache is not at the listed coordinates. BYOP, no room for swaps. The cache can be found just above ground level at
S 34 46.08A
E 138 59.467
where
A = number of active courts (don't include the one over the far side which looks unused)
The Courts
The courts here at Cromer are at the intersection of Cromer Road and Blackwood Road. The old school is nearby, a lovely community setting.