In preparation of this Saturday’s Alcatraz 100 swim (in which Team beRecruited.com will be competing), here is a guide to swimming the frigid water of Alcatraz. This Saturday, Ryan Spoon and Brendan Mclaughlin will be among the 350 competitors thats take part in the Alcatraz swim. As most Alcatraz races begin, they boat us out to the Rock, blow a shotgun, and the swimmers dive into the water and race to land.
Alcatraz Courses
There are two Alcatraz courses - the most common is from the rock almost directly south into the Aquatic Park beaches. This swim is (if swum perfectly) 1.25 miles long and the last quarter mile is actually protected (Aquatic Park is a cove near the wharf with a concrete opening for boats). The second course, shown below, is into the beaches of Chrissy Fields. This course is roughly 1.75 miles long and is far more difficult because it requires better sighting and mapping - in addition to better conditioning. The mixture of currents makes the Chrissy Fields swim very difficult. As an example, I swam the Aquatic Park course as part of the Alcatraz 100 race in 2004 and placed 2nd with a time of 28:14. Of course conditions were not equal, I swam the Chrissy Fields course in July 2006 and it took 39 minutes.

Alcatraz Currents
Other than the cold, the most challenging aspect of the Alcatraz swim are the currents. On an average day, if you jump in next to the rock and lay back - you will be under the Golden Gate Bridge within 45 minutes! The currents push out towards the bridge, so you must sight east of the landing spot. For the Aquatic Park course, its far easier and you will notice a large Orange building that you aim towards. Once inside Aquatic Park, its a protected swim and a sprint to the finish. Chrissy Fields is far more difficult because the sighting spots are not as clear - it is recommended that you aim for the west side of Aquatic Park and, as you approach Chrissy Fields, aim towards the furthest east point of the beach.

Be warned - NEVER aim for the swimmers ahead of you. They will most always be to the your right and, by following them, you will be much further west than they are by the time you reach that point! They have already fought the currents to get to their current positioning - if you must follow a leading swimmer, aim EAST.
Also of note, it is ALWAYS better to overshoot East rather than West. Take a look at the images below used by GPS tracking - you will notice how off course some of the swims are. There is nothing worse or more difficult than having to fight the currents and swim upstream to correct earlier mistakes. It is always easier to swim downstream!

Alcatraz Waters & Cold
Sure - the currents are tough… but the waters are frigid! The two times I’ve swum it, its been 57 and 59 degrees. And you will feel much colder pockets of water. My two swims were with wetsuits - but plenty of people swim without wetsuits… its pretty remarkable. If you are able - take the opportunity to swim in Aquatic Park at least once before the race. The water is freezing cold and it shocks your body. If you are particularly worried, you can wear ‘wetsuit’ caps - if you don’t have one, you can wear multiple latek caps. Always make sure that your cap is neon colored as its much safer should you need attention or assistance. If you can’t practice in Aquatic Park, it is recommended that you prepare by showering in cold, cold water.
The Alcatraz Swim Around the Rock
And if you are particularly crazy… there is a new course for Alcatraz swimmers - a swim from Aquatic Park to the Rock, around it, and then back! It took the top swimmer in last year’s inaugural swim ~1 hour and 20 minutes. It took the last swimmers over 3 hours!! That’s a lot of time in the cold waters! This is a ridiculous challenge that is impressive in its audacity and its stupidity!
