While we are staying in Lake Garda this coming August, we would like to take an evening/sunset after dinner to to soak in the outdoor thermal pools at the Terme. A couple of questions: 1) Is the Terme Sirmione a separate place/entry from the Terme Virgilio and Terme Aquaria? 2) We will be with our daughters, ages 10 and 13, who liked this sort of thing when we tried in Costa Rica, but we just need simple soaking, no spa treatments since we'll be with them. Do we need a reservation to get in for just the soaking in the outdoor pools during this August high season--do they "sell out" thermal pool admissions during that time? 3) can one get a locker if one is just using the thermal pools--or do those sell out? Thank you!