We have this one. They have a larger one as well, but I find this one to be super easy to set up and put away on my own.
That's quite a range. Personally, I wouldn't take a 4 year old to the beach for more than 2 or 3 hours, tops. If you absolutely have to, then I'd suggest one of those little tents (like this one: https://www.amazon.com/dp/B00RQQRTSM/ref=cm_sw_r_apan_glt_i_NW9YH804YSQG5W758QM8?_encoding=UTF8&psc=1) that you can set up for them to rest in the shade in.
Hi- It’s a beach tent I got last year during a seasonal sale. It’s available online at Pacific Breeze Easy Setup Beach Tent https://www.amazon.com/dp/B00RQQRTSM/ref=cm_sw_r_sms_c_api_i_1O69Eb2CHC3X2
Amazon has a variety of others in different sizes. Hope you can find something. This is the best investment ever! I’ll never goto the beach without it.
I recommend a Pacific Breeze tent, like this one: https://www.amazon.com/Pacific-Breeze-Easy-Beach-Tent/dp/B00RQQRTSM/ref=sr_1_3?crid=2AWO3VNH3GLSP&keywords=pacific+breeze&qid=1668914046&sprefix=pacific+breez%2Caps%2C236&sr=8-3
I recommend the Pacific Breeze tent because it holds up extremely well under moderate wind, unlike most other beach tents.
Here's a picture I took at Ala Moana Beach Park a few months ago under moderate wind: https://imgur.com/a/xX4XCEL The Pacific Breeze tent on the left is perfect while the other tent is nearly fully collapsed in the wind. I think the right side tent normally looks like this: https://www.amazon.de/-/en/Waterproof-Portable-Foldable-Shelter-Protection/dp/B07R492JKS At the time I took the picture, all my friends were just totally amazed how every other tent on the beach was bending and collapsing in the wind EXCEPT the Pacific Breeze one, which is why I took a picture. Here's a video of a guy testing a Pacific Breeze tent under wind conditions and it hardly moves: https://www.youtube.com/watch?v=oB0YjMGU4Xw
I personally have a Lightspeed tent from Coscto, which looks like this: https://www.amazon.com/Lightspeed-Outdoors-Quick-Cabana-Shelter/dp/B07DFXPPPT At the time I took the picture, my tent was also bending in the wind and slightly collapsed, though not as bad as the one in my image.
Pacific Breeze Easy Setup Beach Tent https://www.amazon.com/dp/B00RQQRTSM/ref=cm_sw_r_cp_api_glt_fabc_JJF0VJ00ACKCX7C81TD9?_encoding=UTF8&psc=1
We like this one! Sets up in about 10 seconds!