In Mary Shelley's Frankenstein, what diversion does Henry suggest to raise Victor's spirits?
In Mary Shelley's Frankenstein or the Modern Prometheus, after Victor's illness, a number of incidents prohibit Victor from returning home immediately.
While the weather makes the roads to Geneva impassable, Clerval suggests that he and Victor go on a walking tour:
...in the environs of Ingolstadt, that I might bid a personal farewell to the country I had so long inhabited. I acceded with pleasure...I was fond of exercise, and Clerval had always been my favourite* companion in the rambles of this nature that I had taken among the scenes of my native country.
With regard to the success of this plan of Clerval's, Victor was already much improved in his health, but...
...[my health and spirits] gained additional strength from the salubrious air I breathed, the natural incidents of our progress, and the conversation of my friend....Clerval called forth the better feelings of my heart...I became the same happy creature who, a few years ago, loved and beloved by all, had no sorrow or care.
For a short time, until the creature reappears in Victor's life, he is much the man he was before his experiments, finding joy in the life around him, a great deal because of Clerval's dedication to seeing Victor through this dark time in his life.
Clerval's diversion is a "walking tour," which is like hiking and sight-seeing, and Clerval's plan does work in making Victor even stronger, and much like his old self.
*favourite - British spelling of "favorite"