Margaret Island looks great. Those fountains are really cool. I've got a bur in my saddle about water fountains right now but I don't begrudge them. They have water.
Castle also looks fun. Nice reliefs. Sweet architecture.
I like what you wrote about the baths. Urchling and I went skating at a new (to us) park a few weeks ago and encountered the same sort of thing. Young people all up on their phones taking pictures of their skating outfits instead of skating. Lolz. It's a world wide phenomenon.
I think I have the only teenager in the world who doesn't want and refuses to accept a cellphone.
Sounds like a great trip! Well earned and deserved. Glad you and SOP got to spend some time away. I've been worried about you guys and Britons in general. Glad to have you back too!
Tough break about the dearth of wildlife. That's pretty much the best part of every vacation.