Which of the following sentences makes sense?
- We took the new kayak out on the lake as it was a nice day.
- We took the new kayak out in the lake as it was a nice day.
English Language & Usage Stack Exchange is a question and answer site for linguists, etymologists, and serious English language enthusiasts. It only takes a minute to sign up.Sign up to join this community
Definitely on the lake.
If you're in the lake, you're probably swimming, sinking or otherwise submerged. Think of it like floating on top of since the emphasis of boating is staying afloat and moving more or less in 2 dimensions, whereas swimming, fishing and playing tend to involve a little more freedom with respect to movement throughout the depth of the water.
Also, I'd go with since instead of as and reorder the sentence, "Since it was nice out today, we took the new kayak out on the lake." It's not wrong per se, but as works better with comparisons, substitutions or as a way of introducing a fact. Using as on its own to talk about the setting or a reason has a tendency to over-inflate the register or tone of formality. As for the reordering of the sentence, it just kinda rolls of the tongue better unless you wanna add a pause in the middle and refer back to some prior point in a conversation.
Other options might be:
We took the kayak out on the lake today, since it was so nice out.
Seeing as how it was so nice out today, we took the kayak out on the lake.