I'm from the NE, but live in Norfolk and have for many years. We (me, DH and our son who'll be 8) are going up to visit my family for 5 days-ish from 17-21st December. I'd like to take DS to see Santa (for what will probably be the last time, as he's suspicious) while we're up there, but I don't know where is good to go near Newcastle/Whitley Bay/Northumberland. I've seen Belsay Hall and Alnwick Gardens, but wondered if there's anywhere good that I'm missing. I'm out of touch with what's there for kids. Thank you!