For a day long activity which one would you choose?

1,2,3 are on the top of my list....all three are great options (I wouldn't think twice in getting immersed in any of them).
Option 4 is ok as a fall back. The nature of exploring uncharted territory is what's appealing.
But, all in all the physicality of the first three win out. Genetically, I've been built to physically dominate. I'm big and muscular, I crave being physical.

I did 1 and 4 today

Kayaking, as long as there was some whitewater.

City touring would come in second. Generally there are better stores to shop in.

And what would you choose?

I’ve done 1 and 4 tons
I’d love to do some kayaking

Conflicted between 3 and 4 😌

Some jungle works right now👌🏽

I would like to tour Vienna 🙂

Trekking

Jungle safari

Trekking 🏞

Jungle

3

Kayaking for sure.

Star Trekking?

1 and 4

1 or 4

I'll take a city tour bus, so I can sleep :)