I have not anchored on hook reef (although anchorage is possible), but I have on the nearby Hardy reef and Bait reef.
Hardy reef is a great anchorage,no other boats and you can stay as long as you like, but it is very dangerous and scary entrance. I would not recommend it to most people. The information in 100 magic is also total wrong. The only time you can enter is a high tide. At most other time the entrance is a waterfall. The entrance is unmarked. There are two other entrances very close that are suicide. The true entrance is about 1.6 m deep, but only about 4m wide the current
will be at least 5k.
By contrast Bait reef was an easy anchorage and now is even easier with moorings available. The only problem is the 2 hour limit on the moorings is totally impractical in a remote
location like this. The few commercial
operators pay a lot of money
for the privilege
of going out to the reef, but they are generally very friendly. It has been many years since I have been there and regulations
may have changed, but there was an area you can anchor
(and fish) on bait reef. Expect to have to explain your anchoring
and or fishing
to the commercial
operators who are convinced it is illegal until you show them the regulations
(and this may have changed, so please check first). Expect to anchor
in about 15m of water
has made travel to these destinations easy compared to days when the first challenge was to find them without running into them first.
These anchorages have no island protection. So at high tide you are exposed to all the ocean swell many of my early trips were in a small coastal rated yacht with a low AVS. There were several times when I was concerned about the possibility of capsize
at anchor. Don't take people prone to seasickness.