intensive swimming lessons for 5 year old

[clairebear123]

Hi, can anyone help me find a swimming course for my son. He is currently doing level 2 but is a bit stuck, can't move on to next level as is not swimming yet. The pool he is learning in is quite shallow and I think this is holding him back. I am ideally looking for a course which runs in school hols to get him out of this rut. he could then go back to his usual lessons but would be ready to move on.
Any help would be appreciated.