There is no particular clothing required, no particular dress code. People take normal clothes with them, prepared for general weather.
Hundreds of thousands go every year.
Go to Google and click Images and as your search, type in +Lourdes +Grotto and you will find lots of images. Click the link below for one example.
Lourdes is a town, not a country, so it does not have a capital. Lourdes is in France. The capital of France is Paris.
Yes it does rain in Lourdes.
Lourdes is in the south of France. The closest airport is Tarbes. If you are coming a long way to France, you could fly to one of the major airports and then to Tarbes. If you live closer to France it is possible to go by land or sea.
I am going to Lourdes > je vais à Lourdes - to go is 'aller' in French (conjugated verb in link)
There is no age stipulation. From babies to pensioners, you will find them in Lourdes.
Lourdes Colon goes by Tita.
Lourdes Cols goes by Lulu.
Lourdes Pantin goes by Lulu.
Lourdes is always open. You can go there at any time.
It is mainly of interest to Christians, so it is mostly Christians that go, but anyone can go to Lourdes.
NO THATS HER REAL hair
Easter is the big annual HCPT pilgrimage to Lourdes.
Myriam De Lourdes goes by Mimi.
It is mainly Catholics, but anyone can go and many people who are not Catholic go to Lourdes too.
The Hajj is a pilgrimage undertaken by Muslims who go to Mecca. Lourdes is a place of pilgrimage for Catholics. Millions of Muslims go each year to Mecca and millions of Catholics go each year to Lourdes.