Sep 20, 2019 - 8:18 PM
I'm not sure I'd do posh hotel for the pool- that really limits your choices. It depends on what you think the kids would love and what fits best for you.
Here's an alternative that worked for my kids-- depending on what you are really looking for. It is not posh, however, good for families and there is a pool. We stayed in Murren (not as busy as Wengen). Kids loved the soccer field, ping pong, and indoor pool (free with guest pass for those staying at local accommodations). We stayed at Fontana Chalet hosted by Denise Fussell <firstname.lastname@example.org> creaking but charming place in self-catering apartment. It was across from the Coop. Kids loved having food that we could prepare or get from the coop. Spacious. Breakfast was included every morning. We also walked to the playground at the top of town (and I do mean hike up).
Why did we love it? - soccer field nearby, coop nearby, walked to cable car and trains, kids hike at Allmendhubel after taking the funicular, kids rented bikes locally and we road around, take incline to a children's area, incredible views. Quaint and charming, Denise was lovely too. You can get a half fare card and then a Holiday pass in summer that for around $110 per adult and $30 per child that allows you unlimited transport between Schiltorn, Murren, Lauterbrunnen, and Stechlberg including the post bus. I do not see the advertisement for the Holiday pass but it was here. schilthorn.ch/en/ It does not include Wengen area, but the half fare card gave us discounts for travel outside of the Holiday Pass (which was discounted with our half fare card).
We did go to Wengen for the Mannlichen to Kleine Sheiddeg hike - but the small town of Murren met our needs with pool, ping pong, and soccer field to run around on. There are many other places in Murren - I mention where we stayed given proximity to the coop. There are posh places here, but a paucity of outdoor pools.