Amazing deal alert: Get an 8-night cruise for 2 people for just 100,000 points

Got 100,000 points to burn in the Virgin Red loyalty program? If you act fast, you can snag an eight-night Caribbean cruise out of Miami that normally costs around $3,400 or more for two people traveling together.

You also can get a five-night cruise for two out of Miami that normally costs around $2,300 or more for 80,000 points. In addition, a seven-night cruise for two in the Mediterranean is available for just 100,000 points.

The limited-time offer is available for Virgin Voyages sailings departing now through June 30.

For more cruise news, guides and tips, sign up for TPG's cruise newsletter.

For your points, you'll get accommodations for two on Virgin Voyages' Miami-based Scarlet Lady or Barcelona-based Valiant Lady in a Sea Terrace cabin — Virgin's fancy way of saying a cabin with a private balcony. That's a big upgrade from the ship's entry-level Insider cabins, which are in the interior of the ship and don't have windows. It's also a step up from the vessel's window-but-no-balcony Sea View cabins.

You'll also get all your meals included, as well as free onboard Wi-Fi, gratuities and entrance to all onboard shows.

Sea Terrace cabins on eight-night sailings out of Miami between now and June start at around $3,400 for two, including taxes and fees. Some departures over popular weeks start at even higher prices.

Related: I've been on more than 150 cruise ships; here's what I thought of my 1st Virgin sailing

TPG values Virgin points at 1.5 cents each, so by our estimate, 100,000 points would be the equivalent of $1,500. That makes this a very good deal, as you're essentially getting the cruise for less than half the normal price.

Sea Terrace cabins on five-night sailings out of Miami between now and June start at around $2,300 for two, including taxes and fees. And that's for a handful of the least expensive departures. Many five-night departures start at higher rates.

At TPG valuations, the 80,000 points needed for such sailings would be the equivalent of $1,200 — nearly half the cost of paying with cash.

Sea Terrace cabins on seven-night Mediterranean sailings out of Barcelona between now and June start at around $2,800 for two, including taxes and fees. At TPG valuations, the 100,000 points needed for such sailings would be the equivalent of $1,500 — nearly half the cost of paying with cash.

Itineraries available as part of the promotion include:

• Eight-night Eastern Antilles sailings from Miami to Puerto Plata, Dominican Republic; San Juan, Puerto Rico; St. Croix; and Bimini, Bahamas.
• Seven-night The Irresistable Med sailings from Barcelona to Toulon, France; Carrara, Italy; Ajaccio, Corsica; and Ibiza, Spain.
• Five-night Riviera Maya sailings from Miami to Cozumel, Mexico, and Bimini.

Don't have enough Virgin points to book the offer — or any at all? You can still get in on this deal by using points from one of several major credit card programs. You can transfer points to the Virgin Red program from the American Express Membership Rewards, Bilt Rewards, Capital One, Chase Ultimate Rewards and Citi ThankYou programs.

To take advantage of the offer, you first must head to the Virgin Red app and tap "redeem" where you see it promoted. This will deduct the necessary points from your Virgin Red account. A member of the Virgin Red team will then email you an access key within 48 hours that you will use to book a cabin using the points at the Virgin Voyages website.

Among caveats to the offer:

• There are a limited number of cabins available as part of the offer.
• A sailing on May 17 is not available as part of the offer.
• Passengers will be assigned a Sea Terrace or Limited View Sea Terrace cabin based on availability.
• The points price is per cabin, whether there are one or two people staying in the cabin.
• All passengers must be over 18 years of age.
• Each Virgin Red member can book up to four cabins as part of the offer, but the booking party must check in at the same time.
• The Virgin Red member responsible for the booking must present their Virgin Red app to verify their eligibility before boarding.

Also note that cabins booked under the offer cannot be upgraded, unless Virgin Voyages subsequently offers the chance to do so.

Planning a cruise? Start with these stories:

• The 5 most desirable cabin locations on any cruise ship
• The 8 worst cabin locations on any cruise ship
• A quick guide to the most popular cruise lines
• 21 tips and tricks that will make your cruise go smoothly
• 15 ways cruisers waste money
• The 15 best cruise ships for people who never want to grow up
• What to pack for your first cruise