No tracks to offer, but I can report that we've used the French charts, both paper and as offered in CM93 and have found them to be spot on. The anchorage (?) to the east of Ile Longue is difficult... thin sand over coral
, lots of loose coral rubble in areas, poor protection in tradewind conditions.
We made our approach to the eastern entrance around the south end of the "hook", following the visible reef line northward about a half mile off. Clear water
, no hazards noted. Gave the north end of the reef about a half mile clearance and had good depths, and then followed the western side of the reef down to the anchorage in the lee of the "Trois Ilots". This was excellent, with good sand bottom, around 30 feet depth
and a few hundred feet off the beach of the biggest island. Sat out a 30-40 knot
SE blow there in comfort. We checked several of the bommies shown on the chart and they were exactly where they were supposed to be. Did not see any that were not on the chart as we then exited via the western pass by I. Longue.
We know several folks who have approached the eastern entrance more or less straight across from Noumea without difficulty, but have no other info on the poorly charted areas.