We have never been to Grand Lido but have been to San Souci 5 times. Last visit 2019.

1. Yes designated area of resort. Pool, beach, bar and lunch service
2. The have nightly shows and used to have a fun piano bar at night
3. Yes
4. Yes
5. Yes but we haven’t been in a while but we were never disappointed
6. They have good water sports and an activity’s squad
7. We met some great people there and still stay in touch with a group.