Oyster Bay can be a busy little wharf, as a boat ramp is available and moorings are ubiquitous. it is best to launch boats greater than 20ft at or close to high tide and trailer parking space may also be limited depending on how busy the wharf is.
There are several moorings in the bay and the holding is good. The beach and seabed here are also quite shallow close to shore and the beach itself is quite sandy on the southern edge.
Oyster Bay gives shelter from sea conditions from S to W to N but only when the wind is slight: While It is not entirely sheltered from winds from these sectors, anchorage is satisfactory.
In any strong winds, especially a southerly, the wind whips through Oyster Bay. It comes straight over Port Underwood hill from Whatamango Bay, then down through Hakahaka Bay and in the process can create rather unpleasant conditions for anchoring.
Williwaws are very common in strong winds around the point of Oyster Bay. (A williwaw is a sudden blast of powerful wind that descends from coastal mountains to the sea.)
Please note that there is a working wharf here where fishermen and mussel farmers load and unload farming equipment and harvests.