Isla Bella Beach Resort & Spa

Isla Bella Beach Resort & Spa sits at mile marker 47, at 1 Knights Key Boulevard in Marathon, on the Overseas Highway, midway between Key West and Key Largo and a 2.5-hour drive from Miami, in the hotel's words. No commercial airport, airport drive time, shuttle or transfer is named; its only air partner is a private jet charter flying from the New York and Boston area directly to Marathon. Parking is for cars only, with no RVs, boats or trailers, and it is not free.

Online, the spa prices every treatment, though its add-ons carry no price. A 50-minute Signature Massage runs $195 and an 80-minute one $290, facials run $185 for 50 minutes or $280 for 80, and body treatments and experiences run $50 to $400 by duration. Couples massage is $200 per person for 50 minutes or $300 for 80, packages run from $300, and a youth menu starts at $95.

No. Massages are sold in 50 and 80 minutes only, at $195 and $290 before the service charge. Our arithmetic turns the $195 50-minute into $234 per 60 minutes, a per-minute equivalent and not a menu price.

A 24% service charge is added to every spa service at checkout and covers gratuity. A 50-minute $195 massage bills at $241.80 before any sales tax. Listed menu prices do not include the charge.

The $47-a-night resort fee, plus tax, covers bicycles, beach and pool access with towels, mini golf, the 24-hour fitness center including Peloton, daily resort activities, a reusable water bottle, in-room coffee and tea, and local and toll-free calls. It does not include the spa, parking, or the 2% destination fee and 1% community impact fee added to the room rate.

According to the hotel's FAQ, the spa is for guests only, while its online booking engine is open to the public and day passes include the spa from 9 a.m. to 3 p.m. Whether a staying guest may use the steam rooms without a treatment is not stated, and guest reviews point to a paid treatment or a membership being needed. Either way, the room rate excludes the spa.

Yes, in limited numbers through the week and on some holidays. Pool and beach access runs until sunset, the spa window is 9 a.m. to 3 p.m. with reservations recommended, and parking is included. No price is published on the hotel's site.

Book online 12 hours or more ahead through the spa's booking engine, or call 786-652-9045 for same-day slots. Arrive at least 15 minutes early. Cancellation requires 24 hours' notice, and appointments canceled, changed or rescheduled later are billed at 100%.

A steam room sits in each locker room, but no sauna, hot tub, whirlpool, hammam or cold plunge is named.

Complimentary beach yoga runs Wednesday, Saturday and Sunday at Pelican Point, with mats at the front desk. Class times go unpublished, so confirm at check-in. The fitness center is open 24 hours and covers 1,000 square feet, with treadmills, bikes, free weights and Peloton, all in the resort fee. Daily resort activities are included too.

Yes. The hotel calls the Adult Pool adults-only and opens it 9 a.m. to dusk, though it does not state a minimum age. The resort has four other pools and is not adults-only.

Yes, within limits. A youth spa menu is for guests 10 and older, while massage and body treatments are 18 and older. No kids club is named, and daily family activities like scavenger hunts, arts and crafts and beach games run on a rotating schedule.

Yes, in dog-friendly rooms: $100 a day for the first dog, $25 for a second, two maximum, one year or older. Dogs are not allowed in the spa, gym or Marketplace.

Book late November to mid-December for the lowest rates, with February, March and July the peak months and no true low month. A peak-month night runs about 1.26 times a middle-month one. Christmas to New Year runs about twice an ordinary night, while Thanksgiving week runs about level with ordinary days.