Sometimes when we break our usual daily routine - e.g. when we go on holiday - it can be hard to fit in training if family and other commitments fill up our days. Try to plan the next day in advance so that you can find a suitable time to go training while others are occupied with other activities. Try and think outside the box - it may be possible for others to accompany you on bikes while you run, or to set out on a walk and arrange to meet at a pre arrange spot at a set time. If possible you could do some research on the internet before you go away to find suitable routes, or choose a hotel with a gym - they are normally open from early in the morning until late at night, so it is easier to fit in your running.