九十九里浜
The local economy is dominated by commercial fishing. "Ise-ebi", a species of spiny lobster, is a notable product of Isumi, as are sardines and Japanese amberjack. The middle reaches of the Isumi River provide irrigation for extensive paddy fields for rice production in Isumi. The area also produces tomatoes and cucumbers. The economy is supplemented by the summer tourist traffic to the local beach resorts. The border between Ichinomiya and Isumi City starts at the southern end of the 60-km Kujūkuri Beach adjacent to Taito port. Taito beach and areas to the north are noted surfing areas. The surfing competition at the 2020 Olympic Games will be held at Shidashita Beach just north of Isumi.