1. Tomorrow, we're going to go to hike.
2. Tomorrow, we're going to go hiking.
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Which one is grammatical? Are both grammatical? Then, what is the differencein meaning?
Both are grammatically correct. When we say we are going to "go to" it usually means a destination, to a park, to the store, to a restaurant, whatever. It's not usual to consider a hike a destination. We would say #2. It means or implies that the hiking is the "going", as in movement, not the destination.
Agreed, "go to" is not associated with a verb but usually a noun. Try reading the sentence out loud if it sounds weird it usually is.
1. Tomorrow, we're going to go to hike.
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Does this sentence mean the following sentence?
3. Tomorrow, we're going to go so that we may hike.
Both sentences are grammatically correct, but they have slightly different meanings.
The first sentence, "Tomorrow, we're going to go to hike," implies that you are planning to go to a specific location in order to hike. It suggests that the primary purpose of your outing is to reach the hiking destination.
The second sentence, "Tomorrow, we're going to go hiking," expresses a more general plan to engage in the activity of hiking. It suggests that the focus is on the act of hiking itself, rather than on the destination.
In summary, both sentences are grammatically correct, but they convey slightly different meanings in terms of the intention behind the activity.