When did you end nap time?

My son is 4 years old, and I’m having SO much trouble getting him to sleep. We are up for work around 7-7:30 every morning. And active outside swimming / playing all the time.. figured he should tire himself out.. He goes to daycare and gets nap time. But lately he isn’t sleeping, it’s midnight and I was woken up to him, I’m hearing him jump around in his room. This is almost nightly for months. Bedtime routine starts at 6:30 pm. In bed by 7:30. That’s hours of restlessness. I’m so tired and exhausted and cant believe he is up past midnight. I’m wondering if nap time needs to go