You can easily get to Peschiera del Garda by car through the A4 highway, which is just a couple hundred meters far from the historic city center, parking conveniently at the Mandracchio parking (the way going to the city center).
Peschiera del Garda can also be easily reached by train. Once you get off at the station, the city center is only a 5-minute walk away and is served by shuttle buses to the amusement parks.