The trolley takes you on a great route, covering many interesting areas. The driver/guides were really good and knowledgable. 2 days on the trolleys gives you time to get off/on again and explore without feeling rushed. Be aware that this is an open air trolley so you are exposed to whatever the weather is doing. Of course this isn't the trolley company's fault! San Diego is having an unusually hot and humid spell right now. Finding the trolley stopping spots was a bit challenging, so look it up online before you travel, is my recommendation At the stops you will see a movable a-shaped sign with the trolley's symbol on it, in green and orange