SRL for [rim]: Right now he takes people out to fish in the bays behind the barrier islands that curve for hundreds of miles along the eastern coast of Texas , enclosing milky green lagoons behind ridges of sand and grassy scrub that [rim] the deep blue of the Gulf beyond .
ARG-1: ridges of sand and grassy scrub | R-ARG-1: that | ARG-2: the deep blue of the Gulf beyond