Golf -- For those who want to play golf at the "top of Europe," there is the Bromma Golf Course, Kvarnbacksvägen 28, 16874 Bromma (tel. 08/564-888-30), lying 5km (3 miles) west of the center of Stockholm. It's a 9-hole golf course with well-maintained greens. Greens fees are 150SEK ($21/£11) or 200SEK ($28/£14) on Saturday and Sunday, and golf clubs can be rented.
Horseback Riding (Viking Style) -- Iceland horses -- known for being gentle and small -- can be ridden at the Haniwnge Iceland Horse Center at Hemfosa, 37km (23 miles) south of Stockholm (tel. 0730/48-88-85). For 450SEK ($62/£32), you can ride for 2 1/2 hours; the price includes a picnic lunch. Aside from walking, galloping, trotting, and cantering, the horses have another gait, the tölt, a kind of equine speed walk that has no English translation.
Sauna & Swimming -- A combination sauna, outdoor heated pool, and children's paddling pool, Vilda Vanadis is at Vanadislunden (tel. 08/30-12-11), near the northern terminus of Sveavägen, within easy walking distance of the Oden Hotel and the city center. This really is an adventure park, with a variety of attractions, as well as a sauna and a restaurant. The entrance fee is 60SEK ($8.30/£4), but once you're inside, the attractions are free. It's open daily May 1 to September 15, from 10am to 8pm.
Tennis, Squash & Weightlifting -- Aside from playing tennis at the Kungliga Tennishallen (Royal Tennishall), Lidingövägen 75 (tel. 08/459-15-00 for reservations), you can lift weights and enjoy a sauna and solarium. The center has 16 indoor courts, 5 outdoor clay courts, and 8 squash courts. Tennis courts cost 200SEK to 280SEK ($28-$39/£14-£20) per hour; squash courts are 30SEK to 210SEK ($4.15-$29/£2-£15) for a 30-minute session; and the weight room entrance fee is 55SEK ($7.60/£4). The center is open Monday to Thursday 7am to 11pm, Friday 7am to 9pm, and Saturday and Sunday 8am to 9pm.