What breeze are you planning to sail in? How big is your fin? I've windsurfed, sailed and motor boated all over the lake and have never come across a gravel bank... Nonetheless it could only really cause a problem in a south easter by the looks of it (from elanda point). In a Nor-Easter (best wind at the lake for blasting IMO) you will just pass far under that point anyway... The only issue is that there is a fair distance out from the point that is shallow and eventually turn to gravel from memory. If the lake is down this can be a problem with a big fin but otherwise you should be fine....

There used to be a red marker off the point there which I assume was warning of the rocks (never realised why they had actually put it there in the past). But that is/was a fair distance out of the way from my recollection??? My suggestion is to just sail from Boreen point

I can tell you there definitely used to be something near there, not sure if it still exists. About 15 years ago I was windsurfing with 2 friends and it was blowing easterly so we were running up and down the full length of the lake on the way back from the top end to boreen camping area I ended up further down wind, was happily planing along on about a 6.5m. Sail with 30cm fin and bang straight over the handlebars took skin off my knees trashed the fin and was lying in about 5cm of water. I had to drag my gear a few meters across this like underwater road until
I got to the deeper water again. One of the scariest things I have ever hit as you
Couldn't see it. One of my friends clipped the edge the other one was fine as he was upwind of that red marker.
Now I never sail inside about where you have your pin marked on the map. I think the only time
It would be a problem is on an easterly like when I hit it. I also seem to recall there was some sort of submerged sign that was obviously supposed to be a warning. It wouldnt matter what size fin you had the day I hit it as there was such a small amount of water covering it but it wasnt visible at all.

Geez all you Lake regulars never mentioned this on my visits! I'd been blissfully sailing around thinking there was nothing to hit...

Give me good old deep water Queens beach anyday. Nothing to hit out there... except the odd turtle; oh, and there's the rays too - cleaned up a few of those; and then there was that big grey thing with fi... oh, never mind.

I am quite sure it is inside the red beacon ie western side closer towards mill point pylons, (not as far out as your yellow marker) although it was a long time ago so can't be absolutely sure. Your track only shows 1 run between there so you could have missed it, or maybe it isn't there now? Water levels could also be higher in the lake since back then.
To be sure I always just stay on the outside of the red beacon when I am up that end of the lake and luckily have never hit it again.

If you are staying at Elanda Point there is a nautical chart up on the wall just to the left of where you book in. It displays water depths, channel markers etc as at time of map production. Over the years I have seen the water level rise and fall depending on a number of factors.

When the water level is on the low side there are often pelicans standing in shallow water to the west of your marked red beacon.

The Mill Point area can be a little deceptive as it is deepish where the submerged pylons are, then rising to very shallow gravel to the south west.

Okay, checked the nautical chart in the boat and found there are shoals marked, here's a screenshot...



I also found that the chart shows a second red beacon closer to Elanda Point. I have never seen this 2nd beacon, but I have heard there is a broken post in the water around this location, so I guess this is a "broken red beacon". I have added this and the gravel shoals from the nautical chart to my google earth map...



So next time I sail from Elanda Point, I reckon the plan is to steer clear of the area from Mill Point to the remaining red beacon, otherwise take it nice and slow! If anyone wants a copy of the google earth points, message me and I'll email the kmz file. The coordinates of the gravel bank are approximately as follows...