Although Christmas Bay is quite large, the sandy bottom tapers very slowly to the beach which means keel yachts need to anchor out at least 300 mtrs before reaching the average depth as shown above.
If stopping for just a few hours, you can sometimes work the tides and sneak in closer. It's great for a swim in clear waters and to relax under the big shady trees.
Even in the high season with prevailing winds out of the NE, the late afternoon sea-breeze can freshen from the SW and make the bay lumpy for a short period, then it settles down again for a quiet night.
Best holding and deeper waters are on the bay's east side between 3 and 4 m. The holding in hard packed sand and mud is excellent.