Yes!!! Willa really likes sitting in water. There's many bodies of water in the area around their house which they frequent. It's good sensory for him, the feeling, the noise, the visuals, the sweet smell of vegetation on the bank, the critters... he loves water... when he was a kid dad would get so frustrated trying and failing to keep him out of puddles lol. He couldn't resist sitting in them, clothes n all.
The twins go on more walks together in the nice summer weather, and they find a lot more stuff for Willa to snack on. Big crunchy bugs and berries, flowers and fresh greens, edible mushrooms, etc. They catch fish and crawdads, the few meats Willa likes. Spring and early summer is the twins' favorite season. Their dad likes late summer when it's the hottest. All of them are winter haters.