Where Green Bay meets Door County's most coveted shoreline — Seaquist Bayshore Marina delivers an experience built on decades of maritime expertise and genuine hospitality.
For generations, the Seaquist family has called the shores of Green Bay home. What began as a modest family dock has grown into one of Door County's most respected marinas — a place where the rhythm of the tides shapes every decision and every guest experience.
Nestled in the heart of Sister Bay, our property blends the warmth of family hospitality with the polish of a destination that discerning boaters and travelers return to year after year. Whether you're casting off from our slips or settling into a lakeside suite, you'll find the same commitment: every detail matters.
Gen
Family-owned heritage
180°
Panoramic bay views
Each of our accommodations is thoughtfully appointed to bring the beauty of Door County indoors — with views that shift with the light and furnishings that feel like yours.
Direct waterfront suite with a private balcony overlooking Green Bay. King bed, full bath, and a sitting area designed for lingering sunsets.
A self-contained cottage steps from the marina. Two bedrooms, a full kitchen, and a wraparound deck — perfect for families or extended stays.
An intimate loft with vaulted ceilings and floor-to-ceiling windows. The sound of lapping water is your alarm clock — wake to open water views.
Whether you're dropping anchor for a night or securing a seasonal slip, our marina operations are built on a simple principle: your vessel deserves the same care we'd give our own. Full-service amenities, attentive staff, and a shoreline that welcomes you home.
Short-term and long-term moorage for vessels of various sizes, with deep-water access to Green Bay.
Covered storage, winterization services, and a boat launch for easy water access all season long.
Clean restrooms, shower facilities, electric hookups, and a lakeside lounge area for boaters and visitors.
Local charters, fishing reports, and personalized recommendations for exploring Door County by water.
Full
Service Marina
Sister Bay sits between Green Bay and Lake Michigan — a quiet harbor town with big charm. From here, the entire peninsula is yours to discover.
Iconic 1850s mission on the bay — a Door County landmark just minutes away.
Historic lighthouse and maritime museum — take a ferry or paddle out to explore.
Crystal-clear waters and sandy shores — perfect for swimming and sunset walks.
Award-winning cool-climate wines at local vineyards throughout the county.
Whether you're planning a weekend escape, securing a seasonal slip, or simply curious about what we offer — we'd love to hear from you. Reach out and we'll respond with the same care we give every guest.
Address
11503 Beach Rd
Sister Bay, WI 54234-9604
Phone
(920) 421-0793Office Hours
Mon – Fri: 8:00 AM – 6:00 PM
Sat – Sun: 9:00 AM – 4:00 PM
Seasonal hours may vary
We'll get back to you within 24 hours.
Thank you for reaching out. We'll be in touch within 24 hours.
