I am really confused with the setting of waypoint heights and need some advice please!

Here is a test I want to try but if I get it wrong it would be fatal!

https://www.dropbox.com/s/1ygxvk ... House_Test.awm?dl=0

Home Point (Aprox) -28.1922969818115 152.636016845703 247m AboveSeaLevel (This is really my home!)

Waypoint 0 -28.1922397613525 152.635986328125 247m AboveSeaLevel Fly 50m (Waypoint Altitude)

Waypoint 1 -28.1938610076904 152.637619018555 205m AboveSeaLevel (Over Water +33.6m Max Depth = 238.6m a.s.l.?) Fly 0m (Waypoint Altitude)

Waypoint 2 -28.1949195861816 152.63786315918 205m AboveSeaLevel (Over Water +33.6m Max Depth = 238.6m a.s.l.?) Fly -5m (Waypoint Altitude)

Waypoint 3 -28.1944351196289 152.636627197266 205m AboveSeaLevel (Over Water +33.6m Max Depth = 238.6m a.s.l.?) Fly -5m (Waypoint Altitude)

Will the Phantom be flying aprox 7m above the water level?

Waypoint 4 -28.1922969818115 152.636016845703 247m Above Sea Level Fly 50m (Waypoint Altitude)

I would really appreciate some help here for a couple of reasons 1) To understand waypoint heights and 2) I dont want to destroy my new Phantom!

Regards

Guy MacDonald

Can not open your attached file~