Dog lover Ellen DeGeneres has given a Caribbean cruise trip to four Wellesley firefighters who helped rescue a golden retriever from the icy Charles River. “I love Boston so much, I love Massachusetts, but it’s so cold there,’’ DeGeneres said on her show Tuesday. “I think you deserve to go somewhere warm, so each of you are going on a trip to the Caribbean from Princess Cruises.’’ The host also bestowed on the firefighters — Jim Dennehy, Lieutenant Paul Delaney, Dave Papazian, and Joan Cullinan — bedazzled monogrammed orange life vests. (Crosby, the dog they saved Dec. 22, also got a vest.) The firefighters punched through patches of ice to rescue Crosby, who had chased a squirrel onto thin ice before falling in. The rescuers donned ice suits and swam through the freezing waters to get close to Crosby, who initially swam away. Papazian finally was able to grab Crosby by the collar, and a team on the shore used a rope to pull everyone safely to shore. The dog’s owner, Amy Kapinos, told DeGeneres she still tears up when she sees Crosby’s rescue video. PETA has announced it will give Wellesley firefighters its Compassionate Fire Department Award, an honor that comes with a framed certificate, a letter of appreciation, and a box of vegan chocolates.