For some more info and example scenes, please click this Youtube Video Link:
Bakies The Sims 4 Custom Content: Unlocked Swamp Trunks & Tree - Walk-through (it's only 4:02 minutes long)

Unlocked Swamp Trunks & Tree - Walk-through
Back in 2015 I've made an Unlocked Swamp Pack, which also contained 3 objects that are large enough for our Sims to walk underneath.
This wasn't possible though, as I didn't know how to make that happen in game. But now I do! So I've changed those objects a bit and with some small adjustments in game, you can let this happen too!
The things you need to keep in mind after placing them, is that you need to block your Sim's route on the places you don't want them to go. (Both walking as swimming)
This can be done by adding rocks, plants and grasses around those parts. For all objects counts, place the "blocking" objects around the parts that hit the ground or are too low to walk underneath.
As placing objects all around the sides of the hollow tree doesn't look that natural, I recommend using my invisible fence mod over there, by building around it and after that make them invisible by switching to the second swatch of that object.
For examples on where to place the blocking objects and invisible fences take a look at the screenshots or if you want to know exactly how it's done and see some more examples, take a look at the video linked at the top.

All three objects are perfect to use as natural gates to walk through, but can also be used in your swimming pools to swim through after raising them to the water surface.
There's a nice example of that in the video too.

Object information:
These mods are Base Game Compatible
They're standalone objects, so won't override any other objects in game.
You can find them in Build mode > Outdoor > Trees OR type Walk-through into the search bar.
You can recognize it by my "BakieGaming" icon in the lower right corner of the thumbnail.
The cost are:
12 Simoleons for the Bow and Hollow Trunk
650 Simoleons for the Old Cypress Tree (That's quite expensive, but it's an OLD Cypress tree, you don't see them that often)

Game Requirements:
Base Game Compatible

Game Version:
Tested with gameversion: 1.52.100.1020

Custom Content visible on the Thumbnail
Amanita Muscaria - Mushroom - Glow in the dark
Walkthrough Grasses - Base Game + Jungle Adventures
Unlocked + Recolored BaseGame Rocks

I'm sure there're people who can use this in their game too!
If you want to use it in screenshots or videos, be sure to give me some credit!

>> Want to share my mods? <<
Besides giving me credit and linking back to this page, I would appreciate it if you could add my video instead of (only) the thumbnail.

Additional Credits:
Thanks to the Sims 4 Studio
Thanks Adobe for making Photoshop