NIROX Open Day // NIROX Sculpture Park is open to the public 10:00-17:00 on weekends and public holidays. NIROX is a private not-for-profit foundation to benefit the arts. All income is used to maintain the grounds, the artist residency programme, and artist support. R10 of your entrance fee supports the Columba Leadership Residency, an award-winning national NGO with more than 10,000 graduates from disadvantaged circumstances; transforming their schools and communities through values-based leadership and exposure to a panorama of possibility, natural splendor and creativity.