A welcome bonus is a bonus that a casino offers its players once they join their site. It's a way to appreciate new customers and encourage them to play. However, any winnings from the welcome bonus may have to be used to make other bets before any withdrawals can be made.
Gibraltar is something of a curiosity in Europe. Geographically a part of Spain, it is actually a British territory. Strategically important for the UK, it is also a popular tourist destination. Gambling is legal and popular, and mobile casinos bring a completely new level of convenience for locals looking for opportunities to play.