Scrooby, Nottinghamshire tried to (illegally) flee the country via Boston, Lincolnshire. They walked across country, paid the captain of a ship to take them to Holland - they were taken onto the ship, but he then betrayed them - which is how they came to be imprisoned in the town & brought before the court in the Guildhall.
The next year they successfully escaped to Holland - where the group (and worshipped) for over a decade. In 1620 - after much planning - they set out for America. The last place their ships left in England was Plymouth in Devon. A website dedicated to the Mayflower Pilgrims in Plymouth, Devon - can be accessed here.