Looking for a cheap 3 night stay near a beach in August, yorkshire coast or within a few hours drive of Middlesbrough. Son is 10, not interested in evening entertainment and would generally prefer somewhere quieter with nice views, but do like the idea of there being some activities (mini golf, archery?) on site in case we can tempt him offline. Looking at finding a private caravan on one of the Haven or Parkdean sites maybe? Thornwick and Reighton look like they might be smaller than Primrose Valley but dithering over reviews. Does anyone have experience of either recently or have any other suggestions?