Are Pena Adobe and Lagoon the same place?

Pena adobe is the old settlement part right to the left as you enter into lagoon valley. This area can be reseved out for events and other activities with the city of Vacaville.

Lagoon Valley is in Pena Adobe Park

Yes

Next to each other, Pena Adobe is more of the Hills where you can hike And Lagoon is more like a Park with a small Lagoon in the middle with a Dogs spot