Seattle Diamond Camps – Youth Baseball & Softball Training

BASEBALL INSTRUCTION IN YOUR BACKYARD.

A new name and our most elevated camp experience yet! Introducing Mariners Diamond Camps, a place where every young ballplayer can grow and have fun. This year brings exciting upgrades: professional instructors, a refreshed camp format, brand-new locations, and exclusive opportunities at both MiLB and MLB ballparks. Campers will also enjoy limited-edition, camper-only merchandise and, for the first time ever, our new Mini Mariners program welcomes athletes ages 4–6. Get ready for a bigger, better, more unforgettable summer of baseball.

The Camp Experience

Daily Schedule: 9:00am – 3:00pm

Mariners Gear: Campers will be suited with a camper t-shirt, to look and feel their best!

Competitions & Game Play: An opportunity for campers to showcase their abilities through fun challenges, skill competitions, and live game action.

Mariners Giveaways & Prizes: Every camper will receive a gift, with opportunities to earn special awards and prizes for standout performances throughout the week.

Professional Photography: Remember your experience with a keepsake photo on the field at T-Mobile Park! (Note: Only at Ballpark Camps)

Extra Work: Optional Early arrival and extended hours are available at some locations for ages 7–14.

Game Tickets: Each camper will receive discounted ticket opportunities to select Mariners home games at T-Mobile Park.

Age Divisions

Mini Mariners (Ages 4–6)

Perfect for first-time ballplayers or seasoned tots, Mini Mariners Camps are all about making baseball and softball fun, active, and confidence-building. Using specialized kid-friendly and fun equipment, our experienced coaches introduce the fundamentals and curriculum in a positive, high-energy environment that feels welcoming from the first pitch.

Through engaging drills, playful games, and plenty of chances to run, throw, and hit, campers build skills while soaking in the excitement of a true Mariners-style experience. By the end of the week, kids leave smiling, proud, and excited to keep playing the game.

Neighborhood Camps (Ages 7-14)

Whether your player is just getting started or ready to level up, Mariners Diamond Camps are the perfect place to learn, compete, and have fun. Designed for athletes ages 7–14, these camps feature high-level instruction from experienced coaches, skill-building stations, friendly competitions, and live game play — all in a fast-paced, supportive environment that feels uniquely Mariners.

From sharpening fundamentals to building confidence and teamwork, campers get the chance to play hard, stay active, and experience the game the Northwest way.

Two Ways To Play!

Ballpark Camps

Step onto the field and experience baseball like the pros. Mariners Ballpark Camps give young athletes the rare opportunity to play, train, and compete at Minor League stadiums and iconic T-Mobile Park. Designed for players ages 7–14, with special Mini Mariners programs for ages 4-6, these camps combine high-level instruction, fast-paced drills, competitive games, and unforgettable moments — all in the same places where the game’s biggest moments happen.

From taking ground balls on pristine fields to rounding the bases in legendary stadiums, campers will sharpen their skills, build confidence, and soak in the excitement of a true professional experience. It’s baseball at its best — bigger, louder, and more memorable than ever.

This is more than a camp.
It’s a Ballpark experience your player will never forget.

Neighborhood Camps

The Mariners are coming to your neighborhood. Mariners Neighborhood Camps deliver a big-league experience on local fields across the community, giving young athletes the chance to learn, compete, and have fun close to home. Open to players ages 4–14, these camps focus on skill development, teamwork, and confidence through high-energy drills, engaging stations, and live game play.

Led by experienced coaches, campers receive top-quality instruction while experiencing the excitement of a big league atmosphere — all in a familiar, community-first setting. Whether it’s a player’s first camp or their next step in the game, Neighborhood Camps are designed to make baseball fun, accessible, and memorable.

Big-league energy. Local fields. A Mariners experience your family will love.

LET'S GET STARTED

Packages and schedule vary. Select "Learn More" for camp details and pricing.