Swam adverbs are provided in this article. The words listed here are commonly found along with the verb swam in sentences. This reference page helps answer the question what are some adverbs that describe or modify the verb SWAM.
actually, directly, immediately
lazily, quickly, rapidly
safely, silently, slowly
steadily, strongly, swiftly
vigorously
Hope this word list had the swam adverb you were looking for. In addition to adverbs used with swam, other example verb adverb pairings can be found on this site.
You can help by adding more adverbs in the comments. Thanks.