Has anyone been cable water skiing in either Wollongong or Penrith? My friends are considering it and given that I dont have enough balance to actively participate I thought shooting it might be fun. Just wondering if anyone has any idea what kind of reach I'd need.

I have a D800 and was thinking of putting my 70-200 with a 1.7TC on it as I dont have a 300 2.8 yet.

Would that be enough?