Kite surfing
On windy days this is an exciting sport, but it takes a few days to learn to stop falling off. needs a reasonable level of fitness. centres are balatonboglã¡r and balatonfenyves.
Relaxing
In thermal spas. the two best known are at hã©viz (http://www.en.wikipedia.o...)ã©vãz_spa and csisztapuszta just south of fonyã³d.
Since the lake is shallow, summer storms can create very large waves, and people have drowned in most years. A system of warning beacons around the lake alerts bathers to expected strong winds and storms: 30 flashes/minute, colour white/yellow means winds 40-60 km/h, and you should move close to the shore. 60 flashes red/white means winds over 60 km/h. Time to get out quickly!
Hiking
In the northern hills.
Sailing
There are several annual sailing races for those prefering competition. for boat rental fonyod, balatonlelle and balatonfã¼red are the best places. a 8m yacht from about huf 70,000/day.
wine cellars
Exploring wine cellars. A well worn trail is the climb up Badacsony Hill, which is peppered with small wine growers selling their wines by the glass and bottle. Much of it is mediocre but you may find some gems. Treat it like a pub crawl and have fun. A wine trail leaflet can be downloaded here: (http://www.badacsony.com/...)
Swimming
Summer water temperatures range from about 16c to the mid 30s; because the lake is shallow, yesterday's air temperature will be a good guide to the warmth of today's water. there are many places to go down waterslides and just take in a bit of shallow bathing, but be aware that the shallow banks of balaton are very murky. you can scarcely avoid getting silt everywhere. beaches on the north shore tend to have more facilities, but have an entrance fee.the shore here tends to be rocky and the water deepens rapidly to a mximum of about 14 metres. most beaches on the southern shore are free, though large sections of the shore are privately owned by hotels and campsites. the lake shelves slowly, so you can walk out for 500m or more before you are out of your depth, so it's very safe for children. large free beaches are at zamã¡rdi, balatonboglã¡r, fonyã³d and balatonfenyves. there are many hundreds of access points to the shore, so you are unlikely to have to walk far to find a pleasant place to swim.