7/7-7/10: Semana Nautica Summer Sports Festival: The annual festival winds down this weekend. There is a 5-mile biathlon (4-mile run and mile swim) at East Beach on Thursday. Players from UCSB’s championship tennis team will vie in the 80th Santa Barbara Open at the Municipal Courts on Saturday and Sunday. After building their vessels, sailors will find out if they are seaworthy in the Kardboard Kayak Races at West Beach on Saturday afternoon. At 9 a.m. Sunday, swimmers will depart Goleta Beach and won’t touch land again until they reach Hendry’s Beach in the 6-Mile Ocean Swim. Visit semananautica.com.