Beach cover up

[Baxdream]

I'm after a decent longer sleeve shirt cover up for holiday. I want it to be versatile so I can use it when we have lunch to put over swimwear but also we are going to UAE so just to have in my bag for emergencies (not for mosques, more incase air con is cold etc).
Has anyone seen any nice shirts? I'm tall and a size 12

Next had some nice pure lightweight cotton shirts last year, should imagine they have them this year, M&S/Zara also usually good.

https://www.marksandspencer.com/pure-cotton-round-neck-longline-beach-shirt/p/clp60640974?intid=mobile_app_pdp_share

That is exactly what I'm after, thank you!