Peel and Puree the cucumbers.
Pour the puree through a fine mesh sieve or cheesecloth into a glass bowl to strain out any larger pieces, especially of the peel. This may take awhile to strain, so be patient and let it sit.
When cucumber pulp has strained, add the red pepper flakes, sea salt, and lime juice; stir to combine well.
Cover bowl and refrigerate for 30 minutes before serving.