I saw lockers near the pool but no shower..the bathroom was big enough to get changed and I assume there was an electrical outlet for a dryer. .didnt see a shower though..just go onto the plane with the chlorine smell. My kids LOVED the water slide there.
From Touring Plans. Never used the Contemp pool myself.
Feature Pool has one water slide that all ages are free to use. Guests can find showers, storage lockers, restrooms, and laundry facilities. Pool hours are at least 9 AM to 8 PM, extending to as much as 7 AM to 11 PM during busy times. Feature Pool will have lifeguards during the pools' operating hours.
The CR bathrooms in that building by the main pool have showers, but like many Disney pool restrooms it’s not exactly the most comfortable place to shower and change. Think small, damp, etc. Passable and gets the job done though, and there is shampoo/soap. Bring towels in from the pool area.
This is the men’s restroom from March. I assume the women’s is similar.