Hi Helen,
Trust me, You will enjoy any trip with Just You, long or short, You will not be disapointed. The Discovery weekends are great, But I can recommend a short 5 day trip, To Walking in The Ahr Valley in Germany. It is a short 5 day trip and great value for Money, And is a great ice breaker to Just You Holidays. ( I have been there 6 times ) Although it is classed as a walking holiday, You do not have to be a marathon man or Chris Bonnington to do it.
I have met folk up to the age of 79 and they still managed it.
Go for it, Don't think just pick a trip from the brochure and book it
All the best
Andy