The airstrip on Southport beach is now closed (ever since the new sea wall caused the beach to grow some rather grotty grass) but i hear that some enlightened locals are seeking to re-instate it a bit further south.
The entire beach from Crosby up to nth Southport (hesketh bank) has been used at some time or other for nearly a 100 years but there are many soft sand patches which preclude use today without a thorough survey.