

2 week swim progress! How to get heart rate back down?
Started training for a 70.3 2 weeks ago with little experience in any of the disciplines. My first swim went as expected, no more than 50m without stopping for a 3 minute rest.
Today I swam 3km and even managed a 1350m continuous swim! I’m happy with this but I’m worried about my heart rate, I know that the swim should be easy to save energy for the bike.
So how do I train to get quicker and stay at a lower heart rate?
Currently I’ve just been alternating between drills sessions and then a session where I try to go far, should I change this?