Puerto Diablo Beach is a remote cove, and as such, it typically lacks lifeguards or marked swimming areas. The water conditions can vary, but generally, coves offer more sheltered waters than open coastlines. Swimmers should exercise caution, be aware of any currents, and assess conditions upon arrival. It's best suited for experienced swimmers comfortable in natural, unsupervised settings.

The best time to visit Puerto Diablo Beach is during periods of best weather and when crowds are fewer. This generally aligns with the dry season, typically from December to May, when sunshine is abundant and rainfall is minimal. Visiting outside of peak holiday periods will also increase your chances of experiencing its wild scenery in solitude.

Access to Puerto Diablo Beach is considered remote and may require boat access. It's not a beach with mainstream map visibility, suggesting that traditional road access might be limited or challenging. Visitors should plan for a boat charter or inquire locally about the most reliable ways to reach this hidden northeastern shoreline cove, which adds to its adventurous appeal.

Given its remote and hidden nature, Puerto Diablo Beach does not have any direct food or lodging facilities. Visitors should plan to bring all necessary provisions, including water, snacks, and any beach essentials. For accommodations and dining, you would need to return to the more developed areas of Vieques, such as Isabel Segunda or Esperanza, which are a drive away.

Puerto Diablo Beach stands out due to its truly wild scenery and minimal mainstream map visibility. Its remote northeastern shoreline location and boat-access requirement mean it offers an unparalleled sense of discovery and solitude. It's ideal for travelers seeking an untouched, off-the-beaten-path experience away from any crowds, making it a unique gem for adventurous explorers.