Michael,
I live about 10 mins from Wareham. There is a small slipway by the town bridge, but for sailors the two relevant slipways are at Redcliffe and Ridge Wharf. I have only used the former and it is a reasonable slip with plenty of parking and is accessible at most states of the tide. So your information is correct. BTW, it is the river Frome (pronounced "frome" and not "froom" as in the Somerset town) and not the Ware.
From Redcliffe you are about a 10 min motor from the open water of Poole harbour. I always like that motor because you pass through banks lined with tall reeds. It would feel slightly remote and wild if it wasn't for all the boats moored on one bank, but the variety of boats adds to the interest when you want a change from the scenery!
Personally I really like the top end of Poole harbour because it is quiet and you can't see Poole or Hamworthy (no offence to residents of those places, but I prefer countryside and water as a backdrop to my sailing!). Outside the main channel the water can get a bit "limited" towards low tide (the Google Earth satellite view confirms this very clearly) but you have the double high and sailing east takes you to the rest of the harbour.
But if I had a Trouper or similar and lived here I would launch as often as possible from Kimmeridge. That takes you to a lovely bay and if the conditions are right then you can cruise along a spectacular section of the Dorset coast. I used to launch from Kimmeridge a lot and hoped I still would with my BRe; but then I realised that while it is still just about possible, I really don't want to take a new, shiny 20' boat there. Something smaller, e.g. my old 16' Dabber, is perfect there. It gets very popular with divers on sunny weekends but the trick is to stay cool when they are blocking the slipway and use them when you need a hand - a bunch of willing blokes in dry suits can be very useful when leaving or approaching slipways!
You can also launch at Studland beach from a National Trust controlled slipway. Never done that myself but it seems a great option for a direct route to a lovely bay. At low tide you have to walk (or drive) across hard, wet sand but with a Trouper or similar that should be a doddle?!
What I really like about this coast is the huge variety in such a small area - everything from towering Jurassic cliffs and coves, sandy beaches and quiet harbour creeks.
Anyway, that was probably far more than you wanted but you hit upon one of my favourite subjects there! Must do some work now, and, no, I don't work for the local tourist board!!
Jonathan
