Top Things to Do in Riva Del Garda, Province of Trento: See Tripadvisor's 83,471 traveller reviews and photos of 89 things to do when in Riva Del Garda. How much is Full-Day Self-Guided Garda Scooter Tour from Riva del Garda? Full-Day Self-Guided Garda Scooter Tour from Riva del Garda price starts from $133.59. Discover and book Full-Day Self-Guided Garda Scooter Tour from Riva del Garda on Tripadvisor. 3. VISIT ARCO CASTLE. Sitting pretty, looking out over the city of Riva del Garda, is the beautifully regal Arco Castle. Arco Castle is a staple of the Garda Trentino landscape. The castle offers views across the town, valley and mountains surrounding. Cost of admission is only 3.50 euros. #2 Peschiera del Garda. After Sirmione, we were heading east. The next stop is Peschiera del Garda, which is 20 minutes away. It is worth visiting the city fortress and drinking coffee on the small islands at the mouth of the Mincio River. From here, you can admire the medieval buildings reflected in the lake. dDO8.