You asked
Is the nikon af p dx 70 300mm f 4 5 6 3g ed vr good for travel?
Not really, not as your only lens. The 70-300mm is a telephoto zoom. On an APS-C body it frames like 105-450mm, so it has no wide end for streets, interiors, food, or landscapes. My travel guide suggests one versatile zoom that covers wide to short telephoto, and this lens doesn't do that.
It does have image stabilisation, which helps in dim churches and markets. It's a good companion for wildlife, sport, or distant details if you want reach on a trip.
If you want one lens for the whole trip, look at the Nikon AF-S DX 18-300mm f/3.5-6.3G ED VR instead. It's a DX travel superzoom that covers the wide end too. Pair either lens with a small fast prime for evenings and food, as the travel guide suggests.
Written by Claude from this site's pages.