A source exclusively tells PEOPLE the pair are "really happy"
The pair were photographed from behind while waiting for a ride.
A video from their excursion shows the pop star, 30, and the Tony nominee, 31, spending time with friends and enjoying a tour from a theme park guide.
“They went with a big group of friends as well her mom and brother," a source exclusively tells PEOPLE, adding that they are "really happy and really good for each other.
"All of her friends love him," the source said of Slater.
In early September, PEOPLE reported that Grande and Slater's relationship was still going strong and has been "much different than what has been portrayed."
“They are just trying to navigate their new relationship in private,” the source continued.
“People have tried to question the timeline,” a close family friend said of the relationship between Grande and Slater, who were friends and costars before they began dating.
The pair's romance started after Grande’s separation from her husband Dalton Gomez and Slater’s separation from his wife Lilly Jay. “The truth is, Ariana and Ethan didn’t begin seeing each other until after both parties were separated, respectfully,” continues the close family friend.
An additional source close to the situation told PEOPLE that the couple "are doing their best to balance the fact that they are in the public eye with the desire to be respectful to all parties involved.”
Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.
“Ariana and Dalton separated in January," a source told PEOPLE. "She and Ethan recently began dating."
Slater is also separated from his wife, Lilly Jay with whom he shares a 1-year-old son.
For more People news, make sure to sign up for our newsletter!
Read the original article on People.