There is nothing more transfixing and relaxing than the ocean to observe and paint.
Being able to follow a step-by-step painting project and create your own painting of rocks and surf is completely doable and accessible to all levels. If you are a beginner or have not painted this subject before, it would be helpful to undertake the Tutorials on drawing Rocks and also the one on Drawing Water.
You can either do the drawing class before tackling the painting (it covers drawing techniques and tips for more than just the ocean) or you can do this project as a stand-alone one.
$10 DIY Step by step Project