Went for a morning run yesterday but the ocean was so calm and appealing I decided to put on my wetsuit and hit my local short course for a 1.2km ocean swim near to shore. Results are incredibly pleasing. Apple really has created a super watch for the more casual fitness person. Even the 100m splits were accurate, clearing showing me that incoming tide was quite strong for the 600m outbound leg, then much faster on the 600m return. Love it.