Easy. We will take Alexa with us on vacation next week We have done so a few times.Where space is an issue like on plane I pack an Dot, but for car travel we bring the portable Tap. Big Echo always stays home.
All you do is connect to the new wi-fi with device. It will remember the setting when you return to same place. When you get home device will reconnect to home network again. The other thing you can do is set the time zone and location so you get the time and weather for Hawaii and not home in Fargo, ND. You will have to change these back when you get home. Just be sure to bring power supply, too. If you change locations while on trip, you will need to change wi-fi and location again. Refresh yourself on how to do all this before you leave home!