Transform your garden pergola swing into a coastal paradise by incorporating various elements inspired by the sea. Start by adorning the pergola with nautical-themed decorations such as seashells, starfish, and fishing nets. Hang a few wind chimes made from seashells to create a soothing sound reminiscent of ocean waves. To further enhance the coastal vibe, consider adding cushions and pillows in shades of blue and white, evoking the colors of the sea and sky. Complete the look by placing potted plants with beach grasses and tropical flowers around the swing. With these coastal elements, your garden pergola swing will become a serene and relaxing spot where you can unwind and enjoy the beauty of the outdoors.