The newest and larger of the four Silversea ships -- Silver Shadow and Silver Whisper -- offer two blackjack tables, and one each of roulette, craps and Caribbean poker, as well as slot machines.

The two smaller ships -- Silver Cloud and Silver Wind -- offer two blackjack tables and one roulette, as well as slots.

The casinos on all the Silversea ships have until recently been operated by Century Casinos, a Colorado-based casino company that owns casinos in Colorado and South Africa and also operates the casinos on Oceania cruiseships as well as ResidenSea's The World.

However, Century announced in July 2005 that it would cease to operate the casinos aboard the Silver Shadow as of the end of September 2005.

Cruise-Casinos.com has not yet had an opportunity to evaluate these casinos.