Yep. Time to get the salvageable branches and then skedaddle up past the high tide line to set up her campfire. Definitely want to make sure she's well clear of the oncoming tide.
It doesn't take too long to get a fire going. She shaves some little chips and flakes off the dry bush branches, gets 'em down really fine, then sparks with her striker to get them lit. Blow, add more, blow, add bigger things, blow, etc. Eventually she's got an actual proper fire going.
At that point, she spikes all the fish onto the ends of a couple particularly straight-looking sticks that she sharpens the ends of (these can be wet, it's even better if they are), and she'll roast some tiny fish over the fire. Shouldn't take long. Probably when the scales are kinda charred then the insides are cooked, especially if she holds 'em a bit high.