Workouts the week before Tri

How long you taper depends on how tired you are from training (how much accumulated fatigue you're carrying).  The simplest way to explain it is if you don't feel tired at all, then you don't need any taper.  If you're a little tired, then a couple days to a week.  If you're been training like a freak of nature, so tired you can't see straight, and can't think about anything except sleep and food, then 2+ weeks may be optimum.

In any event, you should't reduce the intensity of your training.  Instead, reduce the duration of the training sessions, but maintain the intensity similar to what you anticipate racing at.

I like to schedule a complete rest day 2 days before the race, and do a short bike-run brick at race paces the day before.

Have fun!

Re: the bold...sort of.

Race specific training (training sessions designed to prepare the athlete for a specific event by focusing on specific intensities, durations, terrain, weather conditions, etc.) should have occurred in the weeks leading up to the race.  Tapering can be one last time to sharpen skills like transitions and open water navigation plus serve as a reminder of what anticipated race paces feel like, but otherwise, they are going to be less race specific than what occurred during the build.  By that time, the hay is already in the barn.