neckervd - Thanks!!

We just wanted to take a round trip to St. Moritz. See the scenery and maybe buy some Swiss chocolate. I love the idea of having lunch at Alp Grum. Do you think we need a reservation?>

On official Bernina Express trains you do need a reservation and pay a supplement over the normal trains - official trains IME are typically chock full with tour groups but normal trains not really crowded and there are no reserved seats possible I believe though this may have changed but I would not worry about it - but in any case seat reservations are not required and on a regular ticket you can get on and off anywhere you want and board another train. In summer some local trains have open-air flatbed rail cars that are like levitating thru the Swiss Alps.

and usually at such restaurants like at Alp Grum no reservation is needed IME- certainly not to sit on the sun terraces.

Yes get off at Alp Grum or Bernina Ospiz - the stations near the summit and do the walk around the lake to the glacier - have lunch - buy chocolates whatever but I would spend time here and then perhaps just turn around and head back to Tirano (reservations on Tirano-Varenna-Esino are not even possible as on all Italian regional trains.

For lots on the Bernina Pass Railway check www.swisstravelsystem.com; www.budgeteuropetravel.com and www.ricksteves.com and www.seat61.com.

Alp Grum: https://www.google.com/search?q=alp+...w=1745&bih=868

Bring a warm sweater or sweatshirt to wear if walking - if the sun is out sitting on the sun terrace of the hotel is neat.