Alternative reception ideas?

My FH and I pushed our wedding back a year to May 2021. With the circumstances not changing any time soon with covid, my church has set up a tent outside which we are allowed to have our 85 guests attend and spread out with seating. That’s the easy party of our big day. The struggle is the reception which we decided immediate family only. That hard part is celebrating with my family and with his family separate. His parents have had covid and my family has done excellent with isolating themselves inside our tiny bubble of family only. My parents have agreed to host a dinner party for my side of the family as the house is quite large. His family is mostly from out of state and his parents house is too small. We thought brunch/lunch in a park but from my understanding, most public restrooms are now closed due to covid. So we are at a dead end with finding a Place to celebrate the day after our wedding with his family. Are there any other couples out there that have had a similar experience or anyone have some ideas we haven’t thought about? Thank you.