Image 1 of 1 2025 Seaplane Seminar Registration (Single) $50.00 Registration for admission to the 2025 MSPA Seaplane Seminar at Maddens on Gull LakeSeptember 19-20, 2025 Quantity: Add To Cart Added! Registration for admission to the 2025 MSPA Seaplane Seminar at Maddens on Gull LakeSeptember 19-20, 2025