The annual Mariners Hospital Bougainvillea Ball is the largest fundraising event for Mariners Hospital. Proceeds from the evening will benefit the hospitalâ€™s Oncology Services Department, which provides chemotherapy in a personal, comfortable environment. Since its opening in 2013, the department has had a tremendous impact on Keys residents living with cancer â€“ replacing the physically draining toll of a four-hour round trip to Miami with dignified and personal treatment close to home. Chairs are Joanne McGregor-Ganus and Betty Anne Schilling. Sponsorship and philanthropic opportunities are available at levels ranging from $4,000 to $100,000.