Mariners' Village and Marina   
        Located on the beautiful Illinois River in Seneca, Illinois
STS Marina

Time to find a home for your boat!

You may click HERE to see which slips are currently available, if any!

Are you sick of pulling your boat around every time you want to use it?  Do you need a friendly marina for your cruiser to call home?  Do you want a fun area for your summer boating adventures? Mariners' Marina is the answer to all of these questions!  And STS Marina can offer you a boat slip rental to fit your needs in Mariners' Marina.  We are located on the beautiful Illinois River on the Marseilles Pool - a wonderful 27 mile long section of the river populated with wildlife, islands, beaches, and long stretches of solitude.  A great place for all of your boating fun!

What makes Mariners' Marina the smart choice for your summer boating fun?

Well, all of our boat slips include:

  • Crystal clear city water.
  • Beautiful Clubhouse with clean showers and recently decorated bathrooms.
  • Refreshing pool with wonderful harbor and river views.
  • A relaxing sauna.
  • A workout room with pool views.
  • Membership for the private Bar & Grill.
  • Monthly informative newsletters.
  • Convenient washer and dryer in Clubhouse.
  • Scenic harbor area with boat ramp, tables, & bonfire sites.
  • Plenty of vehicle parking.
  • Free Wi-Fi service in the marina.
  • Slips that can handle boats up to 50 feet.
  • Reliable AC power (high-current shore power at a nominal extra charge).
  • All of this and very competitive pricing!

No need to look further - Mariners' Marina is just the place that you've been looking for! 

Why STS Marina?

STS Marina is the largest owner of boat slips in Mariners' Marina and owns slips on every single dock in the harbor.  Its sister company, STS Properties, owns the Clubhouse, pool, and associated facilities.  STS Marina is in the best possible position to provide you with a great experience in Mariners' Marina - from docking to swimming to shower facilities!  Our customers are also able to rent the Clubhouse for parties and special events. 
You may view and print a copy of our current Marina flyer HERE.  

The extended boating season in Mariners' Marina runs from April 1st through November 1st.   Don't wait too long to reserve a slip as the selection dwindles as time goes by.  You may see the slip layout for Mariner's Marina by clicking HERE.

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Steve and Thom will work hard to make your stay in Mariners' Marina an excellent experience.  Together, they own the STS companies and are also the Mariners' Marina Board of Directors.  You may contact them via email at  They can also assist you with slip availability and related pricing. 

2020 STS Boat Slip & Pool Applications Are Here

Here are links to the STS Boat Slip and Pool application forms:

   Mariners' Marina Boat Slip Rental Application
   Clubhouse Pool Membership Application

Please return your completed form(s) to the above email address or send to the address on the form.

Mariners' Marina Logbook

Mariners' Marina publishes a popular newsletter to keep our boaters abreast of rules, fun facts, important items, and Marina activities.  Full copies of this newsletter, the  Mariners' Marina Logbook, are available below:

  March 2019 Edition
  April 2019 Edition
  May 2019 Edition
  June 2019 Edition
  July 2019 Final Edition
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Marina Rules and Hot Topics

Mariners' Marina has some basic rules designed to keep the Marina safe and fun.  An abridged copy of the Marina Rules is posted at each of the electrical boxes around the marina.  You may also download and/or print a full copy of the Mariners' Marina Rules by clicking below.  The Mariners' Marina Board reserves the right to fine and/or expel boaters from the Marina for rules infractions and their decisions are final.  In the latter case, any rental fees are forfeited.
Mariners' Marina Rules

The following are key rules to bear in  mind:

Noise - Be considerate of your neighbors – please keep noise down after hours.

Fires - Fires and grilling are not allowed on the docks or on boats while docked in the marina.

Fire Lane
- The gravel running along the north side of the harbor is a fire lane and vehicles may not park along this road.  A ten minute grace period is provided for unloading and loading of vehicles.

Refueling - There is absolutely no refueling allowed in the marina.  Period.  Boaters may bring sealed fuel containers to their boat but these containers may not be opened in the marina.  Boaters may legally refuel their boat in the river.

Electrical Connections - Dock power should not be used for running boat air conditioners and other high current items when owners are not present.  This will help control commercial power usage in the harbor during the boating season.

Speed Limit - Vehicles should drive slowly on the gravel road running along the north side of the harbor.  Please do not make dust which can settle on boats in the harbor.  Children are often playing along the road which is another reason to drive slowly and carefully.
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 Our mariners may join the Facebook group "Mariners' Village and Marina".  If you are currently logged into Facebook and already a group member, you may click here to jump directly to this Facebook group (or submit a request to join this group if not currently a member).