Any unique birthday ideals for a Capricorn turning 50?

The weather, depending on where you are, may not be the greatest to give a Capi a fitting birthday.

If you are able, try to find something outdoors, out in the hills or mountains. If there is any sort of 'adventure' thing you could do and he is up to it, that would be fun.

On a more romatic side, maybe rent a cabin in the woods for the weekend, some where away from the city and people, and more close to nature. If you are anywhere near the ocean, maybe rent a beach cottage.

Sensual and affectionate activities are pretty good for Capricorns. They are very sensational, like Taurus and Virgo. Try going out for the three day weekend and have some fun. Go to the movies, invite friends and family, have drinks, etc.