Posted by Rae Lynn on 4/26/2023 to
Nautical, Beach & Sea
Underwater Cave DIY in 10 Steps
Explore the ocean depths from your foyer, bar, or living room at your next nautical, under the sea, or ocean themed event with this simple DIY underwater cave backdrop on any wall.
Our underwater cave is 8 feet wide x 3.5 feet tall, but it is easy to adjust the size and shape to fit any space.

Materials Used
- Fabric or paint, solid black wall covering (8.5 feet tall x 9.5 feet wide)
- Fabric
- Satin, 96 x 42 inches, aqua
- Glittered tulle
- Turquoise, 96 x 42 inches
- Pale blue, 96 x 42 inches
- Felt, black
- 84 x 24 inches, 1 piece
- 54 x 18 inches, 2 pieces
- Push-pins, clear or black (if possible)
- Acrylic paint, black (optional)










- Select a point on the long edge about 1/3 of the length from the end.
- Pin this point at the top of the satin such that the short portion will extend all the way to the side.
- Pin the end of the short portion to the side at an angle from the top point.
- Pin the end of the long portion to the bottom at an angle to the top point in the opposite direction.
- Make folds in the tulle to create additional sun rays between the two sides; pin them at the edge of the satin.
- Cut off excess tulle along the bottom.










Backdrops and vistas are a great way to set the mood and make a big impression that guests will remember.
Have fun!