Isla Bella Beach Resort & Spa — 5-Star Luxury Hotel in Marathon, United States
★★★★★ 5-Star Luxury Hotel

Isla Bella Beach Resort & Spa

Marathon  ·  United States  ·  1 Knights Key Boulevard

4.4 2438 guest reviews

About Isla Bella Beach Resort & Spa — Luxury Boutique Hotel in Marathon

Isla Bella Beach Resort & Spa is an exceptional 5-star hotel in Marathon, United States. Guests enjoy a distinctive experience combining world-class facilities including kids club, bar, beach club, and more with the personalised warmth that defines great boutique hospitality.

Guest Reviews 4.4 / 5

Alexandra Mullen
★★★★★ Aug 2025

We stayed here for 5 nights with our 11-month-old daughter and had a truly wonderful experience. The staff were exceptional in every area—front desk staff were especially friendly, helpful, and welcoming, while the wait staff were attentive and the bartenders prepared excellent drinks. The location is stunning, with breathtaking views throughout. The resort is also very family-friendly, which made it the perfect choice for our first holiday with our daughter. Thank you to the entire team for making our stay so enjoyable. This was the best vacation we could have hoped for, and we look forward to returning.

Sandrine Bohbot
★★★★☆ Aug 2025

Overall, this hotel is worth a visit. The property is well maintained, offering a wide range of activities both on-site and nearby. The staff is exceptionally friendly and helpful, and the rooms are clean and comfortable. Our kids had a wonderful time — the resort is very family-oriented and kid-friendly. The views are spectacular, which truly enhances the experience. That said, I do have two major critiques: 1. Food quality and options – Unfortunately, the dining experience fell short. We ate at both the beach bar and the Mahina restaurant, and the food was bland, overpriced, and lacked fresh, healthy options. The marketplace offered some decent small bites, but it’s not a solution for full meals. 2. Bed comfort – The beds were extremely uncomfortable, with mattresses that felt cheap. My husband and I didn’t sleep well during our stay, which impacted our overall enjoyment. With some improvements — particularly in food quality and bedding — this property has the potential to become one of the most sought-after hotels in the Florida Keys. A few thoughtful adjustments could make us genuinely excited to return.

Hannah Wallace
★☆☆☆☆ Aug 2025

RUN from this resort! I am writing to express my extreme dissatisfaction with my recent experience at Isla Bella. My family and I had a trip planned with another family and upgraded our room to a larger suite the day before our arrival. Upon checking in, we found there was no valet or bellman available to assist us. The resort seemed to be operating with very limited staff. When we entered our upgraded two-bedroom suite, we immediately noticed a strong smell of mildew, along with another odor seemingly meant to mask it. As we are extremely sensitive to such smells, this made the room uninhabitable. I contacted the front desk to address the issue and was informed that the resort was at capacity. Despite having driven 10 hours to reach your establishment, the incompetence and rudeness of the front desk staff, coupled with the unacceptable room conditions, left us with no choice but to check out after only an hour of attempting to resolve the situation. I was also informed that no manager was available to speak with, and we were threatened with high charges, such as cancellation fees and one-night reservation fees, if we did not stay. There was no care, apology, or empathy for our families. To my dismay, after leaving the resort, my credit card was charged three times for over $1000.00, despite the fact that we did not stay, use any amenities, or consume any food. I had also paid a reservation fee in advance, which was not refunded, and my card continues to be charged. This is completely unethical. I am now disputing these fraudulent charges and strongly advise others to avoid this poorly managed resort.