A good leisurely cycle using the chain ferry from Sandbanks to Studland and then pushing on into the hills of the Purbecks - Corfe, Swanage, all at your beck and call - country pubs, cream teas and campsites abound when the views get too much. Great for a weekend or even longer when the weather is perfect - very Nuts in May!
Poole or Bournemouth train station and then pedal to Sandbanks for the ferry.
Google map: bit.ly/UxQtLG