Just arrived back from my first trip to Cocos Keeling Islands.
Verdict - It's a Kitesurfing paradise and really worth a visit!..although a bit on the expensive side and 50/50 for the plane heading back to Perth arriving or not. Also 50/50 for your 2nd bag to fly with you heading our there.
Waist deep to 30cm based on the tides, 13-28 knots every day... 25-28 degrees day and night....3 hour early morning and late arvo sessions.
Short video below if you keen to go.
You should post this in the general section as Im sure people from other states would be interested. Great clip, gives you a real feel for the place, always wanted to go.