Great to hear your having a fantastic time. It is a pretty special place as is further down on the Jurassic coast. You can add a few excursions next time. I do consider myself very fortunate to have it on my doorstep although the drive to home matches is a pain.
Yes Hurst Castle is a lovely walk and a nice tester of the legs walking on the shingle. Probably a bit strange but very enjoyable on a winters day when the sun is out and only a few souls around. Not sure if you went to the cafe at Milford buy your pretty much always guaranteed a lengthy wait which drives me mad.
Cheers pal. What a lovely place it is. Will go back in a couple of years, late spring probably.