The beach is one of the few in the region that consistently maintains a 'Blue Flag' environmental certification status.
The four islands visible from the beach are part of the Arvoredo Marine Biological Reserve, a protected federal conservation area.
Local surfing culture here dates back to the 1970s, making it a pioneer spot for the sport in Santa Catarina.
The beach serves as a nesting area for various species of seabirds protected by local environmental laws.
The unique crescent shape is formed by the natural protection provided by the surrounding rocky promontories.
The underwater visibility at the nearby islands often exceeds 15 meters, making them prime scuba diving destinations.
Quatro Ilhas is a crescent-shaped beach located on the Mariscal peninsula in Bombinhas, Santa Catarina. The beach derives its name from the four islands visible on the horizon: Ilha do Arvoredo, Ilha Galés, Ilha Deserta, and Ilha do Macuco. It is recognized for its high-quality water, consistently meeting the environmental standards for primary contact as monitored by the state's environmental agency. The shoreline features a mix of fine white sand and rolling Atlantic waves, attracting a consistent surfing community. The northern end of the beach offers calmer conditions suitable for swimming, while the southern side experiences stronger surf. The beach is bordered by lush Atlantic Forest vegetation, which helps preserve the area's natural topography. It serves as a primary access point for trails leading to the Morro do Macaco, a notable viewpoint in the region. The area remains a popular destination for seasonal maritime tourism and surfing competitions.
The elevated viewpoint at the end of the northern trail looking back toward the crescent shoreline.
Bring a polarizing lens for your camera to reduce the reflection of the sun on the water for better island shots.
Prioritize the northern end of the beach if you are visiting with children, as the waves are significantly gentler there.
Carry your own waste bags, as public bins can fill up quickly during peak summer months.
Do not attempt to swim in the southern corner during high tide, as strong rip currents are frequent.
Avoid walking on the protected sand dunes and keep noise levels low to respect local wildlife nesting.
