The Mariners offer summer baseball and softball camps all across the Puget Sound area. Mariners Grand Slam Camps provide a unique experience developing skills for all players, whether they are beginners or advanced. Campers are grouped by age and ability and coached by professional educators, former pros and current college players. This allows the instruction and experience to match the level of all campers who attend.
Learn more and register for the Mariners Grand Slam Camps
. Download the 2022 Summer Camp flyer.