I dont have no experience in travel blogs whatsoever, so dont take me as an expert.

But i think a single-destination posts works well because Google SEO just loves that kind of post. Since i assume most interested reader would google "Positano Italy travel" and expect posts that talk specifically about that place and nothing else.

I have my own wordpress post though! I'm treating like a premium Steemit account and post whatever fancy me. Maybe i eventually must play the SEO game too. When the time comes i would love to get advices from you if you ever write about SEO on your steem account!