When I look at an activity classified a Boating or Sailing, there is no speed chart displayed on the website, or option to add it. If I change the type to something else, even things like Yoga or Diving where I can't imagine speed being a useful statistic, the speed chart is there. The units would typically be in knots per hr instead of mph, but that shouldn't be a problem to adjust. The IOS connect app does show the chart, but it is nice to see the speed chart data synced with the map location which can not be done in the IOS app.