Travel across the Canada-U.S. border could resume by late summer or fall, according to the cautious estimates of some experts, but they say the process will be complicated.

The border has been closed to non-essential travel like tourism and recreation since March 2020, and the closure agreement between Ottawa and Washington is expected to be renewed on May 21.

The agreement makes exceptions, for example, on compassionate grounds like attending a funeral, or to apply for refugee status, and enforcement has been less than absolute.

But the question on most people's minds, says foreign policy expert Aaron Ettinger, is probably "When can I do my day trips over the border once again?
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