The Hideway Hotel in Windermere is always perfect
Check out room 12 - hopefully will stay in that room one day. Have stayed in room 2 with a lovely roll top bath and room 7 up on the top floor with views out to the Langdales.
Richard & Lisa the owners go out of their way to make your stay special. The tea and cakes on the afternoon are an added bonus.
When visiting the Windermere area we always visit Jacksons bistro down in Bowness check out their reviews on trip advisor. We have also found a lovely Italian down in Bowness called Villa Positano on Ash Street
Last time we were down in Bowness we stumbled across this lovely pub behind the church http://www.newhallinnbownessonwindermere.robinsonsbrewery.com/ we will be going back for a drink next time we are in Bowness.
When staying in either Windermere or Ambleside we always enjoy the boat on the lake
between the 2 villages. You can't beat the jam doughnuts @ the Apple Pie cafe in Ambleside http://www.roomsattheapplepie.co.uk/ and they also have rooms there too which are on my list to stay sometime.
Another place on my "to stay list" Langdale Chase http://www.langdalechase.co.uk/
There is no better place than the Lake District if you get the weather.