Associação Sealand Santa Cruz is a community sports association based in Silveira, serving the Santa Cruz area of Portugal. It brings together people who share an interest in ocean and board sports, with teams and activities spanning surfing, bodyboarding, skimboarding, bodysurfing and skateboarding. The association organizes competitions and community events throughout the year, including the Circuito Sealand Santa Cruz, Taça Sealand, Santa Cruz Bodyboard Open, Santa Summer Cup and the Sealand Run.

Its news coverage follows local events and athletes, including national and international competition results. Sealand also shares event photography and videos, offering a look at competitions, community gatherings and the coastal sports scene. Visitors can explore its online shop, which features branded clothing such as T-shirts and hoodies, and find information about training and becoming a member.

With its combination of sports teams, events, media and merchandise, Associação Sealand Santa Cruz supports participation in board sports while helping build an active community around Santa Cruz