Last year I made my first bikepacking trip in central Europe. The experience was much better than I could have thought, so right now I am planning to join that route with the baltic countries this year - where I plan to achieve around 600km in 5 days.
The preparation for such trip needs to start months before the event, so I decided to get one Polar HR monitor and play a little bit with the data that its recorded during the routes:
Tracking your Heart Rate
Tracking your Speed Pace
Try me with Google Colaboratory
If you have a Google account, you can run this code by uploading the .GPX file of the route that you want to visualize and avoid any installation in your computer.