They're adventurous kids. My 10 year old would like to try new foods (especially new desserts). My 12 year old is a passionate about soccer and loves to climb anything. Honestly they're currently most excited about the waterslides, flowrider, and rock wall on the ship. We're traveling with my sister and brother-in-law but don't need to do everything together if we have different interests. Also happy to hire a guide at a port or two, or take an excursion.
I have the Rick Steve's book (big fan pre children, but we haven't been back to Europe since) thanks for the tips so far. This is our rough plan:
Pre-cruise in Stockholm (2 days): Vasa museum, Skansen, changing of the guards. Rent bikes or take the T-bana or bus for transport. Looking for food recommendations, especially on the go meals/snacks. One slow restaurant a day is usually our limit.
Klaipeda: enjoy the beach on the Curonian Spit, ferry then walk or rent bikes? Other ideas?
Riga: Old Town (DIY walking tour based on RS or Lonely Planet), look at some Art Nouveau ? (unsure about the museum, looks like you can book a private English tour very inexpensively), Museum of the Occupation? Eat chocolate? Find a Latvian adult beverage too?
Helsinki: Suomenlinna fortress then Sauna? Maybe part of RS walking tour? The speed boat ride sounds like something my kids would love....wasn't aware of that at all- thanks! Lunch ideas, Snacks?
Tallin: RS walking tour. I'll look into the food tour, sounds memorable. Did you book through your cruise line?
Visby: Medieval walls. Climb a tower if open. I read somewhere about about a great place for ice cream?
Then back to Stockholm. Thanks for all the great ideas so far 🙂