My husband and I bought a boat and after renovating it, we sailed to Greece five years ago. My four grandchildren ages 4, 4, 2 and 1, were born within two years of each other, and of course I miss them terribly. But we come back from the boat for several months over the winter, and I spend as much time as I can with them then. You can use Skype and Facetime, and to be honest, who can remember their grandparents or what they were doing, before the age of 4?
At least you are not going forever. Some people live an awful lot further from their grandchildren, like Australia, or even the north of Scotland, and only get to see them once or twice a year if they are lucky,. Go on your holiday, don't feel guilty.
Giving my pots a bit of a boost after the winter




