- The name Kefli comes from a Hebrew expression used by Israeli youth, Ayzeh Kef Li– “I’m having a great time.” The name Camp Kefli reflects our spirit of informal, well-structured summer fun infused with a strong sense of Jewish community. For two weeks in late August, each morning is filled with the dynamic spirit of Temple Isaiah’s Camp Kefli. At Kefli, the day begins with excitement and anticipation. The Camp Kefli staff leads a wide range of programs that are appropriate to each age group from Kindergarten through 8th grade, filling our two one-week sessions with fun. Some programs utilize the wonderful Temple Isaiah facility while others take place off site. We offer creative theme days and adventures that enrich and delight our campers.