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Grand Slam Entertainment, Cape Cod Baseball & Bumper Boats

Closed Now: 9:00 AM - 9:00 PM
Open today: 9:00 AM - 9:00 PM
Review Highlights

I selected this place for my daughter to enjoy the bumper boats as I recall loving them as a kid... read more

Reviewed 11 August 2018
Julie A
via mobile
So much fun!

We went with our kids, ages 6 & 7, just before 6pm on a Friday. We got the $20 unlimited... read more

Reviewed 23 July 2018
Boston, Massachusetts
via mobile
Read all 37 reviews
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Traveller Overview
  • Excellent87%
  • Very good13%
  • Average0%
  • Poor0%
  • Terrible0%
Travellers talk about
“batting cages”(21 reviews)
“zip line”(7 reviews)
“arcade games”(6 reviews)
Cape Cod Bumper Boats Grand Slam Entertainment is a 29 year old Cape Cod Family Fun tradition. Featuring Bumper Boats, Batting Cages, Zip Line, arcade room, panning for treasure and more! Try your luck in any of our 7 baseball, softball and...more
Closed Now
Hours Today: 9:00 AM - 9:00 PM
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Suggested duration: < 1 hour
322 Main St. Route 28, Harwich Port, Harwich, MA 02646-1702
+1 508-430-1155
Reviews (37)
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All reviews batting cages zip line arcade games change of clothes all ages great fun wiffle ball bottled water grandchildren love whole family look forward betting gems blast panning siblings tradition
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1 - 10 of 37 reviews
Reviewed 11 August 2018 via mobile

I selected this place for my daughter to enjoy the bumper boats as I recall loving them as a kid. It was the Rock Wall that she loved. The customer service made the difference at this place! The woman at the counter that checked us...More

Thank Julie A
Reviewed 23 July 2018 via mobile

We went with our kids, ages 6 & 7, just before 6pm on a Friday. We got the $20 unlimited boats/climbing wall + 4 batting token deal (zip line is also included), and had so much fun! The kids rode the bumper boats, climbed the...More

Thank carib_vacation
Reviewed 13 July 2018 via mobile

So, I've been going to Grand Slam since the 90s for the bumper boats, which are super fun (insider HINT - hit the pirate splash button for extra splash!) This year they added a zip line that goes RIGHT OVER THE WATER. It is super...More

Thank Valentina T
Reviewed 18 August 2017

There is nothing quite like bumper boats when the pool is full! There was so much laughter, it was great to watch. Water was spraying everywhere! My grandsons went on twice and were dripping wet but were wild about it. They also enjoyed the batting...More

1  Thank Maryanne M
Reviewed 9 August 2017 via mobile

This is a place I use to go to when I was a yonger child on the Cape, this year I brought my three year old and he loved it! Bumper boats are $7 and batting cages were $5 for 40 balls. They had a...More

1  Thank Colie0818
Reviewed 30 July 2017

It has become a tradition. At least for the past 8 years. We take the kids, grandkids and have some serious laughs and a good time. Time to soak your parents, siblings, bystanders. A fun time. Batting cages. And now a zip line. Can't leave...More

1  Thank jbbowes63
Reviewed 29 July 2017 via mobile

As a grandparent you are always looking to please an active grandchild . They not only were active at GSE they had fun. They even offered extras because we were repeat customers. I would recommend them wholeheartedly for a family fun day.

1  Thank pop10312
Reviewed 24 June 2017 via mobile

We brought our 13 y/o daughter and her cousin here on a Fri, mid-day. The staff was extremely helpful and pleasant. Kids had a great time on the Bumper Boats, other children / adults were enjoying the many other activities. I highly recommend visiting this...More

1  Thank FFD2252
Reviewed 22 June 2017

We always visit Baseball & Bumper Boats when we visit the Cape and look forward to returning each year. Grandchildren love to get wet and squirt each other on the bumper boats and the recently installed zip line that runs over the pool is exciting...More

1  Thank Faye N
Reviewed 14 June 2017 via mobile

The bumper boats are a must do for my family when we visit the Cape. The batting cage is a bonus for my husband to participate in. Harwichport has so much family friendly activities to offer for the whole family.

1  Thank ChristinaJerabek
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Questions & Answers
Ask a question
21 August 2018|
AnswerShow all 2 answers
Response from Julie A | Reviewed this property |
I am sure he will be fine. If he can’t ride alone he can ride with an adult.
Isabel M
6 July 2015|
Response from Dankathiele | Reviewed this property |
Bumper boats are $7 and batting cages range, about $1 a token. Each token is ten pitches.