What if you want to do evening tour one night but want to have 2 extra days later in the week to do hop on hop off? Does the evening tour have to be part of the 48 hr time frame or can it be used a couple of days after taking the evening tour?

If the 48hr pass you purchased is the one with the free night tour then yes...your night tour has to be booked within those 48hrs. The night tour does need to be booked though while the daytime just needs your pass. Try Groupon, they usually have good deal 😊 You won't regret it. The evening tour is amazing! Also you can call them, they will answer all of your questions and book your tour.

Going in the evening is risky. The last bus pass us up and we had to walk almost 2 miles back.

The tours are separately booked.

Evening tours are separate from day tours