Oh hush.
Though I dove into the St Lawrence yesterday afternoon (Canada Day!) and it nearly took my breath away: 65 F / 18 C. I thought it was closer to 70, but I was wrong
Dave, I'm not sure what speeds it would do on the different settings - no GPS. Last time, on the canoe, I figured the top speed setting was good for about 8 km/h / 5 mph, in no wind, flat water.