It can be a little jarring to visit the Oregon Dunes a while after your last trip... things move around. And they're supposed to, in a healthy dune ecosystem.
The winds blow the sand around into new shapes and positions.
Unless someone planted vegetation to “stabilize” the dunes, and that has happened.
The invasive plant species gorse is now a major concern, and the focus of the Oregon Dunes Restoration Collaborative. Reps from the collaborative visit with details of steps and strategies.