Hi Guys,
Didn't bother marking spots on phone/GPS. The area is that good for fishing the charter company doesn't fish the same ground in two years. We were mainly fishing 5-10 mile on the southern side of Barrow Island. The skipper actually found 2-3 new spots on one of the days going out.
We stayed on the southern most island of the Monte Group is a protected bay, see photos below. The Monte's is a lot Islands each with what may appear to safe anchorage, most are but please refer to your chart for tidal movement. some do dry out on low tide.
The southern group of islands are great for fishing, snorkling/diving and exploring. Recommend using your tender for that.
I would probably use the Monte Bello's as the last stop over before heading off to the Coccos Islands but that's for another time.
Below is Sunset over protected bay of Hermite island
Below is a yacht and motor cruiser anchored up at the northern tip of Hermite Island. *Note the bay with no water in it. (low tide)
Looking south out from Hermite Island towards mainland Oz. you might be able to see Barrow island on the horizon left hand side of photo.
Below showing High/Low tide. about 1.2m-1.5m.
Below is again looking southeastish over bay at low tide. Note the two dinghies in 2 ft of water and its about 2ft to about half way to main boat.
Great place to stop over. I reckon you could easily spend two weeks plus there exploring and not get bored.

For the surfers there is good surf in the area (south east ) as well. If your sailing there the breaks will be easy to spot.
Cheers