We're going to Cornwall in April with our 3 DCs and are planning on breaking up the journey (from Essex) by staying overnight roughly half way. Can anyone please recommend anywhere with a decent sized family room? Thanks in advance!
Which route are you planning? The M25, M3, A303 and then the M5, A38/A30 is far more scenic than M25,M4, M5, A38/A30. If you wanted to stop and see Stonehenge, there's a Holiday Inn at the Solstice Park, with various eateries there as well. I normally do the whole trip from Dover to Devon/Cornwall borders in one hit.
You could stay in Plymouth before heading into Cornwall, have a poke around the Hoe and the Barbican before driving over the Tamar Bridge and heading into Cornwall.