Since we're on the subject of Atlantic Playland, now Atlantic Splash Adventure, a few may know that Atlantic Playland was built on the site of Atlantic Speedway, which was a 1/2 mile oval racetrack that operated from 1970 - 1980.
I know that on an urban skyscraper site there probably won't be many who care, but for those that do I've attached an article about the race track that was printed in the October 1979 issue of the now-defunct Stock Car Racing magazine. There are a lot of typical cheesy maritime references (and some exaggerated inaccuracies) - keep in mind it was written by American writers almost 40 years ago - but there is enough information to get an idea of what the track and people were like, for those who care. It's a little ironic that, after such positive exposure in a national publication, it closed down a year later and was converted by the same owners to Atlantic Playland. Apparently an amusement park was much more profitable than a race track, as I know they were having trouble attracting enough cars and enough spectators as a result, despite the impression given in the article. I also know, from other sources, that insurance costs for running a race track were starting to climb, which may or may not have played into the decision.
I haven't been there in a few years, but the last time I was there I noted that part of the go cart track is located on banked turn from the actual racetrack when it was in operation. The front straight with the grid for lining up the cars along with the concrete retaining wall - which wrinkled many a fender over those years - were still intact then.
Article attached below:
On Google Maps satellite shot you can see the outline of about half the track (the southern side) with the location of the other turn having been just north of the water slide. The main parking area was north of that and is mostly grown over today.
https://goo.gl/maps/dnSt4vstjvx
A pic of the northern-most section of the track from 1977:
And, finally, an ad from the Chronicle Herald: