I took a look at the chart with hr, pace and altitude. Several tsunamis
Yeah, quite a few big ones they were pretty scary! :P
I lost confidence in the precision of GPS watch elevation tracking after going for a run along the coast, during which I supposedly went to 30m below sea level on numerous occasions.
Nine Mile Lake would be excellent for rowing in the early AM.
Long and straight
Blair - can I pull you up here - not "precision", "accuracy". I am sure the GPS will have given a wonderfully "precise" set of data - the problem is that it will have included lots of utter boll*cks.