Kim discovers that Wes' recently well-stocked
test kit is missing the snacks...

...and his blood sugar is low...
...and we're a mile from the car...
...and the tide has come in.

We had to turn back at this point because of the incomplete
test kit, but it was good timing for discovery. What had been
beach on our way out was now underwater. Had we stayed out
longer we would have had to swim back.