Update (Jan. 17, 4 p.m. ET): Due to the popularity of this offer, the Toronto departure is now sold out. The Montreal Feb. 13 departure is now $708 ($999 incl. tax), and the Feb. 6 departure is $799 ($1084 incl. tax).

Rumbling volcanoes, darting tree frogs and calm Caribbean waters set the backdrop for these weeklong air-and-hotel vacations to Costa Rica in peak season. Starting from $469 per person ($760 including tax) embark on a unique all-inclusive holiday and save up to $780 compared with packaging air and hotel separately.

Depending on departure city, stay at either Morgan's Cove Resort & Casino in Jaco, a beach city about 65 kilometres west of San Jose, or the Allegro Papagayo in Liberia, both resorts running along warm tropical shores, and surrounded by unspoiled flora and fauna. Each has pool bars, discos, multiple a la carte restaurants and daily and nightly activities such as bonfire parties, cooking classes and kayaking. These packages include airport transfers upon arrival and unlimited meals, snacks and cocktails.

Depart from the following cities and stay at Morgan's Cove Resort & Casino (per person):

• Toronto ... $469 ($760 incl. tax)
  Depart Jan. 29; +$250 incl. tax, depart Feb. 5; +$360 incl. tax depart Feb. 26, March 5
• Montreal ... $648 ($939 incl. tax)
  Depart Feb. 13; +$60 incl. tax depart Feb. 6
• Vancouver ... $829 ($1114 incl. tax)
  Depart Feb. 5; +$110 incl. tax depart Feb. 12; +$170 incl. tax depart Feb. 26

Depart from Edmonton on Feb. 5 and stay at the Allegro Papagayo for $1049 per person ($1336 including tax); or depart Feb. 26 for $90 more per person including tax.