Looking for Corporate Retreat Ideas

What about one of those escape room places that are popular now? Or something charitable. We have volunteered to make sack lunches, pack pantry boxes, bag rice, box oranges, etc at our local food bank.

There are lots of interesting things you could do with a corporate group. My company has gone a lot of different things from fun nights on the town to volunteering.

Escape room was a hit. You could Rent the whole place and pit teams against each other.

We did work on a habitat for humanity house on several occasions. Also park, beach, and trail cleanups. The volunteer session currently in the works is making and serving food at a soup kitchen.

Wine tasting at a winery
An evening program and dinner at a museum.

We've done bus trips to several Broadway shows with dinner served family style at a nice restaurant beforehand.

Evening tour of an arboretum or sculpture garden and cocktails or dinner outside at the venue.

One year we did a harbor dinner cruise which went over well.

What about a service project like Habitat for Humanity?

We've done the build a bike a few times. We also did a fabulous one with a company that matched us with orchestra kids from a local high school and helped them earn their own instruments. Odyssey Teams has this Helping Hands event where you work together to make prosthetic hands, amazing agency.

One of our local (Anaheim area) Escape-type rooms does larger events so a group of 50 could be accommodated, but no idea where you are at.
We've done Segway tours along the beach, theater, zip-lining, driving at the golf range, karaoke rooms. We've brought in game room equipment to our meeting room and hosted games night. We've had outside events where we rented those giant blow-up slides and tug of war things, and have done obstacle courses and hula hoops. We've done Disneyland (SoCal advantage) and Catalina Island. We've had sand-castle building competitions on Coronado Island (after getting actual sand-castle building lessons from a professional, no joke!) We've staged variety nights where the groups break up and create skits and perform.

I'm trying to get one of my groups to do a Price is Right taping for a team event.

The culinary school here offers Chopped. We did that for a team building experience. It was great!  (Prior to that we had a bit of a lesson as well)

Yeah, you'd hate our culture. And each event is selected based on the group interests, so I'd never randomly expect a group to want to zipline. That team at that point in time, it was the right activity. Just like the one time that I was in an activity where I climbed a telephone pole and balanced on top of it before jumping off (tethered). I am terrified of heights, so it was more than a little outside my comfort zone. But I wanted to be there, wanted to try, did my best, and made it to the top. Sometimes team building is about creating bonds, but sometimes it is about pushing yourself to discover that you can accomplish things you never expected.
But I agree, you would hate our company and our culture. It is not for everyone.

We have :

Played bubble soccer
Done laser tag
Go karting
House of Hints (it's like escape the room but with a lot more puzzles)
Gone to professional baseball games
Beer tasting
Oktoberfests
Trampoline parks
Had game nights at our boss' house

We have a smaller office and we are all pretty friendly with each other so we like hanging out together.

Annabella, here is the organization we used for our
Jam Session.