Your trip looks good if a bit rushed,
Jetsfan27. I guess it really depends on whether you want to be constantly moving around or have a few days of downtime. That drive to Jervis Bay and Kangaroo Valley will be a very, very long day. I'd consider overnighting in Jervis Bay or Kangaroo Valley. Also coming straight off a flight and heading up to Katoomba might end up being something that looks good on paper but once the reality of jetlag hits...
You could probably change the order you do things. For instance, the Botanical Gardens are literally next door to the Opera House. So you could visit both then get a ferry to Manly, rather than making two trips.
ETA: And welcome to FT.
Originally Posted by
konagirl2
Water temps in winter are ok in NSW, not so much in Tas! Currently about 20°C open ocean at Sydney and 12°C around Hobart; refer to AODN OceanCurrent for up-to-date sea surface temps (
link).
Oh yeah, the sea temps in Australia are actually pretty cold all year round. It's partly explains why the continent is so dry. SE Qld is on about the same latitude as southern Florida, but never gets cyclones.