Nantucket J/70 Summer Open 2025 in on October 23, 2024 Play Pause Calendar Add to Calendar Add to Timely Calendar Add to Google Add to Outlook Add to Apple Calendar Add to other calendar Export to XML When: June 19, 2025 – June 22, 2025 all-day 2025-06-19T00:00:00-04:00 2025-06-23T00:00:00-04:00 Where: Great Harbor Yacht Club Nantucket MA Contact: Emma Conway Email Event website Event Website