Pools will be open but potentially have a capacity limit and social distancing. From the DVC e-mail:
- Physical distancing at restaurants, lobbies, pools, fitness centers and other public areas, including reducing capacity where appropriate
Further details:
- Physical distancing and capacity measures: There are spaces where we will limit the number of Members, Guests and Cast Members at any given time, including restaurants, pool decks and fitness centers. Our Cast Members will be there to assist you, while also helping to ensure physical distancing guidelines are maintained.
- Temporary modifications to our amenities:
- Restaurants and quick-service dining locations will be available in each of our Disney Resort hotels, though our menus and operating hours may be adjusted. Guests are also encouraged to use our convenient mobile order service, where available.
- Members and Resort Guests are also welcome to enjoy our pools and recreation offerings, which may operate a little differently during this time.
Based on all that pools are definitely open but will definitely not be business as usual. No details on how limited the capacity will be or how social distancing works in the actual pool.
As far as I know water parks aren’t opening at this time.