Eef Beach is one of Kumejima's safest swimming spots and excellent for families. The waters are generally calm with gentle waves, and the beach features designated swimming areas with seasonal lifeguard supervision. The sandy bottom slopes gradually, making it ideal for children. During summer months (June-September), marine stingers can be present, so swim within netted areas when available. Jellyfish are typically minimal, but check local conditions. The beach has showers, restrooms, and shaded areas, making it convenient for families spending the day.

Eef Beach is enjoyable year-round, though each season offers different experiences. Peak swimming season runs May through October when water temperatures reach 25-29°C. July-August brings the most crowds and highest temperatures. April-May and September-October offer pleasant weather with fewer visitors. Winter (December-February) sees cooler air and water temperatures around 21°C, but the beach remains scenic for walks. Avoid typhoon season peaks in August-September when storms can temporarily close beaches. The beach's calm waters and resort facilities make it accessible regardless of season.

Eef Beach is located on Kumejima's eastern coast, accessible primarily by rental car or taxi. From Kumejima Airport, it's approximately 20-25 minutes by car. Rental cars are available at the airport and are the most convenient option for exploring the island. The beach is well-signposted in Japanese and English. Limited bus services connect major points on the island, but schedules are infrequent. Taxis are available but expensive for longer distances. Most beachfront resorts are within walking distance if you're staying nearby. Free parking is typically available at the beach access points.

Eef Beach is Kumejima's main resort area with several accommodation options ranging from beach hotels to guesthouses. Major resorts like Eef Beach Hotel and Cypress Resort Kumejima offer beachfront access with restaurants serving Japanese and international cuisine. Smaller family-run guesthouses provide budget alternatives within a short drive. Beach facilities may include seasonal snack bars or food trucks, but options are limited. Convenience stores in nearby communities stock basics. For more dining variety, the main town areas require a short drive. Many visitors opt for resort meal plans given limited beachside restaurant choices.

Eef Beach stands out as Kumejima's primary developed beach resort area, offering the island's best infrastructure and amenities. Unlike Kumejima's more remote beaches, Eef provides facilities like showers, restrooms, equipment rentals, and nearby accommodations. The beach stretches about two kilometers with fine white sand and consistently calm, clear waters protected by offshore reefs. It's one of the few beaches with lifeguards during peak season. The combination of accessibility, safety features, and resort conveniences makes it Kumejima's most family-friendly option, though this also means more visitors compared to the island's hidden coves.