Line two baking sheets with parchment paper. Arrange pecan halves in clusters of 3, forming a Y-shape to create the turtle "legs and head." You should have about 30 clusters.
In a microwave-safe bowl, combine unwrapped caramels and heavy cream. Microwave in 30-second intervals, stirring between each, until smooth and melted (about 2-3 minutes total).
Spoon about 1 tablespoon of melted caramel onto the center of each pecan cluster, covering where the pecans meet. Let cool for 10 minutes.
Meanwhile, melt chocolate chips and coconut oil together in a microwave-safe bowl in 30-second intervals, stirring between each until smooth.
Spoon melted chocolate over each caramel-topped pecan cluster, spreading slightly to cover the caramel. Sprinkle with sea salt if desired.
Refrigerate for 30 minutes until chocolate is set. Store in an airtight container in the refrigerator for up to 2 weeks, separating layers with parchment paper.